cofense.com Open in urlscan Pro
141.193.213.21  Public Scan

URL: https://cofense.com/blog/hta-fake-chrome-patches/
Submission: On October 20 via api from US — Scanned from DE

Form analysis 6 forms found in the DOM

GET https://cofense.com

<form method="get" action="https://cofense.com">
  <label for="s">Type &amp; hit enter</label>
  <input type="search" name="s" id="s" placeholder="Type &amp; hit enter">
  <a class="submit-form" href="#"><i class="fa fa-search"></i></a>
  <div class="clearfix"></div>
</form>

<form id="mktoForm_1492" novalidate="novalidate" class="mktoForm mktoHasWidth mktoLayoutLeft" style="font-size: 13px; color: rgb(51, 51, 51); width: 346px;">
  <style type="text/css">
    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton {
      background: #e3e3e3;
      border: 1px solid #bbb;
      border-radius: 3px;
      -webkit-box-shadow: inset 0 0 1px 1px #f6f6f6;
      box-shadow: inset 0 0 1px 1px #f6f6f6;
      color: #333;
      font: bold 12px/1 "helvetica neue", helvetica, arial, sans-serif;
      padding: 8px 0 9px;
      text-align: center;
      text-shadow: 0 1px 0 #fff;
      width: 150px;
    }

    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton:hover {
      background: #d9d9d9;
      -webkit-box-shadow: inset 0 0 1px 1px #eaeaea;
      box-shadow: inset 0 0 1px 1px #eaeaea;
      color: #222;
      cursor: pointer;
    }

    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton:active {
      background: #d0d0d0;
      -webkit-box-shadow: inset 0 0 1px 1px #e3e3e3;
      box-shadow: inset 0 0 1px 1px #e3e3e3;
      color: #000;
    }
  </style>
  <div class="mktoFormRow">
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="Email" id="LblEmail" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="Email" name="Email" placeholder="Email" maxlength="255" aria-labelledby="LblEmail InstructEmail" type="email" class="mktoField mktoEmailField mktoHasWidth mktoRequired"
          aria-required="true" style="width: 335px;"><span id="InstructEmail" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoPlaceholder mktoPlaceholderHVF__c"></div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoButtonRow"><span class="mktoButtonWrap mktoMinimal" style="margin-left: 293px;"><button type="submit" class="mktoButton">Submit</button></span></div><input type="hidden" name="formid" class="mktoField mktoFieldDescriptor"
    value="1492"><input type="hidden" name="munchkinId" class="mktoField mktoFieldDescriptor" value="404-JHU-612">
</form>

<form id="mktoForm_1378" novalidate="novalidate" class="mktoForm mktoHasWidth mktoLayoutLeft" style="font-size: 13px; color: rgb(51, 51, 51); width: 461px;">
  <style type="text/css">
    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton {
      background: #e3e3e3;
      border: 1px solid #bbb;
      border-radius: 3px;
      -webkit-box-shadow: inset 0 0 1px 1px #f6f6f6;
      box-shadow: inset 0 0 1px 1px #f6f6f6;
      color: #333;
      font: bold 12px/1 "helvetica neue", helvetica, arial, sans-serif;
      padding: 8px 0 9px;
      text-align: center;
      text-shadow: 0 1px 0 #fff;
      width: 150px;
    }

    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton:hover {
      background: #d9d9d9;
      -webkit-box-shadow: inset 0 0 1px 1px #eaeaea;
      box-shadow: inset 0 0 1px 1px #eaeaea;
      color: #222;
      cursor: pointer;
    }

    .mktoForm .mktoButtonWrap.mktoMinimal .mktoButton:active {
      background: #d0d0d0;
      -webkit-box-shadow: inset 0 0 1px 1px #e3e3e3;
      box-shadow: inset 0 0 1px 1px #e3e3e3;
      color: #000;
    }
  </style>
  <div class="mktoFormRow">
    <div class="mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset mktoHasWidth" style="width: 5px;"></div>
      <div class="mktoFieldWrap">
        <div class="mktoHtmlText mktoHasWidth" style="width: 350px;">
          <h2 class="form-title" style="text-align: center;"><span style="color: #0f2538;" mce-data-marked="1">Request a Live Demo</span></h2>
        </div>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="FirstName" id="LblFirstName" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="FirstName" name="FirstName" placeholder="First Name*" maxlength="255" aria-labelledby="LblFirstName InstructFirstName" type="text"
          class="mktoField mktoTextField mktoHasWidth mktoRequired" aria-required="true" style="width: 210px;"><span id="InstructFirstName" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="LastName" id="LblLastName" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="LastName" name="LastName" placeholder="Last Name*" maxlength="255" aria-labelledby="LblLastName InstructLastName" type="text"
          class="mktoField mktoTextField mktoHasWidth mktoRequired" aria-required="true" style="width: 210px;"><span id="InstructLastName" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="Email" id="LblEmail" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="Email" name="Email" placeholder="Email*" maxlength="255" aria-labelledby="LblEmail InstructEmail" type="email"
          class="mktoField mktoEmailField mktoHasWidth mktoRequired" aria-required="true" style="width: 210px;"><span id="InstructEmail" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="Phone" id="LblPhone" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="Phone" name="Phone" placeholder="Phone*" maxlength="255" aria-labelledby="LblPhone InstructPhone" type="tel" class="mktoField mktoTelField mktoHasWidth mktoRequired"
          aria-required="true" style="width: 210px;"><span id="InstructPhone" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="Title" id="LblTitle" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><input id="Title" name="Title" placeholder="Job Title*" maxlength="255" aria-labelledby="LblTitle InstructTitle" type="text"
          class="mktoField mktoTextField mktoHasWidth mktoRequired" aria-required="true" style="width: 210px;"><span id="InstructTitle" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoFieldDescriptor mktoFormCol" style="margin-bottom: 5px;">
      <div class="mktoOffset" style="width: 5px;"></div>
      <div class="mktoFieldWrap mktoRequiredField"><label for="Country" id="LblCountry" class="mktoLabel mktoHasWidth" style="width: 0px;">
          <div class="mktoAsterix">*</div>
        </label>
        <div class="mktoGutter mktoHasWidth" style="width: 5px;"></div><select id="Country" name="Country" aria-labelledby="LblCountry InstructCountry" class="mktoField mktoHasWidth mktoRequired" aria-required="true" style="width: 210px;">
          <option value="">Country*</option>
          <option value="United States">United States</option>
          <option value="Canada">Canada</option>
          <option value="Afghanistan">Afghanistan</option>
          <option value="Albania">Albania</option>
          <option value="Algeria">Algeria</option>
          <option value="American Samoa">American Samoa</option>
          <option value="Andorra">Andorra</option>
          <option value="Angola">Angola</option>
          <option value="Anguilla">Anguilla</option>
          <option value="Antarctica">Antarctica</option>
          <option value="Antigua and Barbuda">Antigua and Barbuda</option>
          <option value="Argentina">Argentina</option>
          <option value="Armenia">Armenia</option>
          <option value="Aruba">Aruba</option>
          <option value="Australia">Australia</option>
          <option value="Austria">Austria</option>
          <option value="Azerbaijan">Azerbaijan</option>
          <option value="Bahamas">Bahamas</option>
          <option value="Bahrain">Bahrain</option>
          <option value="Bangladesh">Bangladesh</option>
          <option value="Barbados">Barbados</option>
          <option value="Belarus">Belarus</option>
          <option value="Belgium">Belgium</option>
          <option value="Belize">Belize</option>
          <option value="Benin">Benin</option>
          <option value="Bermuda">Bermuda</option>
          <option value="Bhutan">Bhutan</option>
          <option value="Bolivia">Bolivia</option>
          <option value="Bosnia and Herzegovina">Bosnia and Herzegovina</option>
          <option value="Botswana">Botswana</option>
          <option value="Brazil">Brazil</option>
          <option value="British Indian Ocean Territory">British Indian Ocean Territory</option>
          <option value="British Virgin Islands">British Virgin Islands</option>
          <option value="Brunei">Brunei</option>
          <option value="Bulgaria">Bulgaria</option>
          <option value="Burkina Faso">Burkina Faso</option>
          <option value="Burundi">Burundi</option>
          <option value="Cambodia">Cambodia</option>
          <option value="Cameroon">Cameroon</option>
          <option value="Cape Verde">Cape Verde</option>
          <option value="Cayman Islands">Cayman Islands</option>
          <option value="Central African Republic">Central African Republic</option>
          <option value="Chad">Chad</option>
          <option value="Chile">Chile</option>
          <option value="China">China</option>
          <option value="Christmas Island">Christmas Island</option>
          <option value="Cocos (Keeling) Islands">Cocos (Keeling) Islands</option>
          <option value="Colombia">Colombia</option>
          <option value="Comoros">Comoros</option>
          <option value="Congo">Congo</option>
          <option value="Cook Islands">Cook Islands</option>
          <option value="Costa Rica">Costa Rica</option>
          <option value="Croatia">Croatia</option>
          <option value="Cuba">Cuba</option>
          <option value="Curaçao">Curaçao</option>
          <option value="Cyprus">Cyprus</option>
          <option value="Czech Republic">Czech Republic</option>
          <option value="Côte d’Ivoire">Côte d’Ivoire</option>
          <option value="Democratic Republic of the Congo">Democratic Republic of the Congo</option>
          <option value="Denmark">Denmark</option>
          <option value="Djibouti">Djibouti</option>
          <option value="Dominica">Dominica</option>
          <option value="Dominican Republic">Dominican Republic</option>
          <option value="Ecuador">Ecuador</option>
          <option value="Egypt">Egypt</option>
          <option value="El Salvador">El Salvador</option>
          <option value="Equatorial Guinea">Equatorial Guinea</option>
          <option value="Eritrea">Eritrea</option>
          <option value="Estonia">Estonia</option>
          <option value="Ethiopia">Ethiopia</option>
          <option value="Falkland Islands">Falkland Islands</option>
          <option value="Faroe Islands">Faroe Islands</option>
          <option value="Fiji">Fiji</option>
          <option value="Finland">Finland</option>
          <option value="France">France</option>
          <option value="French Guiana">French Guiana</option>
          <option value="French Polynesia">French Polynesia</option>
          <option value="French Southern Territories">French Southern Territories</option>
          <option value="Gabon">Gabon</option>
          <option value="Gambia">Gambia</option>
          <option value="Georgia">Georgia</option>
          <option value="Germany">Germany</option>
          <option value="Ghana">Ghana</option>
          <option value="Gibraltar">Gibraltar</option>
          <option value="Greece">Greece</option>
          <option value="Greenland">Greenland</option>
          <option value="Grenada">Grenada</option>
          <option value="Guadeloupe">Guadeloupe</option>
          <option value="Guam">Guam</option>
          <option value="Guatemala">Guatemala</option>
          <option value="Guernsey">Guernsey</option>
          <option value="Guinea">Guinea</option>
          <option value="Guinea-Bissau">Guinea-Bissau</option>
          <option value="Guyana">Guyana</option>
          <option value="Haiti">Haiti</option>
          <option value="Honduras">Honduras</option>
          <option value="Hong Kong S.A.R., China">Hong Kong S.A.R., China</option>
          <option value="Hungary">Hungary</option>
          <option value="Iceland">Iceland</option>
          <option value="India">India</option>
          <option value="Indonesia">Indonesia</option>
          <option value="Iran">Iran</option>
          <option value="Iraq">Iraq</option>
          <option value="Ireland">Ireland</option>
          <option value="Isle of Man">Isle of Man</option>
          <option value="Israel">Israel</option>
          <option value="Italy">Italy</option>
          <option value="Jamaica">Jamaica</option>
          <option value="Japan">Japan</option>
          <option value="Jersey">Jersey</option>
          <option value="Jordan">Jordan</option>
          <option value="Kazakhstan">Kazakhstan</option>
          <option value="Kenya">Kenya</option>
          <option value="Kiribati">Kiribati</option>
          <option value="Kuwait">Kuwait</option>
          <option value="Kyrgyzstan">Kyrgyzstan</option>
          <option value="Laos">Laos</option>
          <option value="Latvia">Latvia</option>
          <option value="Lebanon">Lebanon</option>
          <option value="Lesotho">Lesotho</option>
          <option value="Liberia">Liberia</option>
          <option value="Libya">Libya</option>
          <option value="Liechtenstein">Liechtenstein</option>
          <option value="Lithuania">Lithuania</option>
          <option value="Luxembourg">Luxembourg</option>
          <option value="Macao S.A.R., China">Macao S.A.R., China</option>
          <option value="Macedonia">Macedonia</option>
          <option value="Madagascar">Madagascar</option>
          <option value="Malawi">Malawi</option>
          <option value="Malaysia">Malaysia</option>
          <option value="Maldives">Maldives</option>
          <option value="Mali">Mali</option>
          <option value="Malta">Malta</option>
          <option value="Marshall Islands">Marshall Islands</option>
          <option value="Martinique">Martinique</option>
          <option value="Mauritania">Mauritania</option>
          <option value="Mauritius">Mauritius</option>
          <option value="Mayotte">Mayotte</option>
          <option value="Mexico">Mexico</option>
          <option value="Micronesia">Micronesia</option>
          <option value="Moldova">Moldova</option>
          <option value="Monaco">Monaco</option>
          <option value="Mongolia">Mongolia</option>
          <option value="Montenegro">Montenegro</option>
          <option value="Montserrat">Montserrat</option>
          <option value="Morocco">Morocco</option>
          <option value="Mozambique">Mozambique</option>
          <option value="Myanmar">Myanmar</option>
          <option value="Namibia">Namibia</option>
          <option value="Nauru">Nauru</option>
          <option value="Nepal">Nepal</option>
          <option value="Netherlands">Netherlands</option>
          <option value="New Caledonia">New Caledonia</option>
          <option value="New Zealand">New Zealand</option>
          <option value="Nicaragua">Nicaragua</option>
          <option value="Niger">Niger</option>
          <option value="Nigeria">Nigeria</option>
          <option value="Niue">Niue</option>
          <option value="Norfolk Island">Norfolk Island</option>
          <option value="North Korea">North Korea</option>
          <option value="Northern Mariana Islands">Northern Mariana Islands</option>
          <option value="Norway">Norway</option>
          <option value="Oman">Oman</option>
          <option value="Pakistan">Pakistan</option>
          <option value="Palau">Palau</option>
          <option value="Palestinian Territory">Palestinian Territory</option>
          <option value="Panama">Panama</option>
          <option value="Papua New Guinea">Papua New Guinea</option>
          <option value="Paraguay">Paraguay</option>
          <option value="Peru">Peru</option>
          <option value="Philippines">Philippines</option>
          <option value="Pitcairn">Pitcairn</option>
          <option value="Poland">Poland</option>
          <option value="Portugal">Portugal</option>
          <option value="Puerto Rico">Puerto Rico</option>
          <option value="Qatar">Qatar</option>
          <option value="Romania">Romania</option>
          <option value="Russia">Russia</option>
          <option value="Rwanda">Rwanda</option>
          <option value="Réunion">Réunion</option>
          <option value="Saint Barthélemy">Saint Barthélemy</option>
          <option value="Saint Helena">Saint Helena</option>
          <option value="Saint Kitts and Nevis">Saint Kitts and Nevis</option>
          <option value="Saint Lucia">Saint Lucia</option>
          <option value="Saint Pierre and Miquelon">Saint Pierre and Miquelon</option>
          <option value="Saint Vincent and the Grenadines">Saint Vincent and the Grenadines</option>
          <option value="Samoa">Samoa</option>
          <option value="San Marino">San Marino</option>
          <option value="Sao Tome and Principe">Sao Tome and Principe</option>
          <option value="Saudi Arabia">Saudi Arabia</option>
          <option value="Senegal">Senegal</option>
          <option value="Serbia">Serbia</option>
          <option value="Seychelles">Seychelles</option>
          <option value="Sierra Leone">Sierra Leone</option>
          <option value="Singapore">Singapore</option>
          <option value="Slovakia">Slovakia</option>
          <option value="Slovenia">Slovenia</option>
          <option value="Solomon Islands">Solomon Islands</option>
          <option value="Somalia">Somalia</option>
          <option value="South Africa">South Africa</option>
          <option value="South Korea">South Korea</option>
          <option value="South Sudan">South Sudan</option>
          <option value="Spain">Spain</option>
          <option value="Sri Lanka">Sri Lanka</option>
          <option value="Sudan">Sudan</option>
          <option value="Suriname">Suriname</option>
          <option value="Svalbard and Jan Mayen">Svalbard and Jan Mayen</option>
          <option value="Swaziland">Swaziland</option>
          <option value="Sweden">Sweden</option>
          <option value="Switzerland">Switzerland</option>
          <option value="Syria">Syria</option>
          <option value="Taiwan">Taiwan</option>
          <option value="Tajikistan">Tajikistan</option>
          <option value="Tanzania">Tanzania</option>
          <option value="Thailand">Thailand</option>
          <option value="Timor-Leste">Timor-Leste</option>
          <option value="Togo">Togo</option>
          <option value="Tokelau">Tokelau</option>
          <option value="Tonga">Tonga</option>
          <option value="Trinidad and Tobago">Trinidad and Tobago</option>
          <option value="Tunisia">Tunisia</option>
          <option value="Turkey">Turkey</option>
          <option value="Turkmenistan">Turkmenistan</option>
          <option value="Turks and Caicos Islands">Turks and Caicos Islands</option>
          <option value="Tuvalu">Tuvalu</option>
          <option value="U.S. Virgin Islands">U.S. Virgin Islands</option>
          <option value="Uganda">Uganda</option>
          <option value="Ukraine">Ukraine</option>
          <option value="United Arab Emirates">United Arab Emirates</option>
          <option value="United Kingdom">United Kingdom</option>
          <option value="United States Minor Outlying Islands">United States Minor Outlying Islands</option>
          <option value="Uruguay">Uruguay</option>
          <option value="Uzbekistan">Uzbekistan</option>
          <option value="Vanuatu">Vanuatu</option>
          <option value="Vatican">Vatican</option>
          <option value="Venezuela">Venezuela</option>
          <option value="Viet Nam">Viet Nam</option>
          <option value="Wallis and Futuna">Wallis and Futuna</option>
          <option value="Western Sahara">Western Sahara</option>
          <option value="Yemen">Yemen</option>
          <option value="Zambia">Zambia</option>
          <option value="Zimbabwe">Zimbabwe</option>
        </select><span id="InstructCountry" tabindex="-1" class="mktoInstruction"></span>
        <div class="mktoClear"></div>
      </div>
      <div class="mktoClear"></div>
    </div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoPlaceholder mktoPlaceholderState"></div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow">
    <div class="mktoPlaceholder mktoPlaceholdergDPRConsent"></div>
    <div class="mktoClear"></div>
  </div>
  <div class="mktoFormRow"><input type="hidden" name="HVF__c" class="mktoField mktoFieldDescriptor mktoFormCol" value="1" style="margin-bottom: 5px;">
    <div class="mktoClear"></div>
  </div>
  <div class="mktoButtonRow"><span class="mktoButtonWrap mktoMinimal" style="margin-left: 0px;"><button type="submit" class="mktoButton">Schedule Demo Now</button></span></div><input type="hidden" name="formid" class="mktoField mktoFieldDescriptor"
    value="1378"><input type="hidden" name="munchkinId" class="mktoField mktoFieldDescriptor" value="404-JHU-612">
</form>

POST /protect-login/

<form id="signin-form" action="/protect-login/" method="POST">
  <div id="input-container">
    <div class="form-group row offset-lg-1">
      <label for="consent_name" class="col-lg-5 col-md-5 col-form-label required">Full Name</label>
      <div class="col-lg-7 col-md-7">
        <input type="text" name="consent_name" id="consent_name" class="form-control" required="">
      </div>
    </div>
    <div class="form-group row offset-lg-1">
      <label for="consent_email" class="col-lg-5 col-md-5 col-form-label required">Email Address</label>
      <div class="col-lg-7 col-md-7">
        <input type="email" name="consent_email" id="consent_email" class="form-control" required="">
      </div>
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HTA FILES DISTRIBUTED AS FAKE CHROME PATCHES FOR CVE-2021-30554

Cofense • Internet Security Awareness,Phishing | July 22, 2021


PHISH FOUND IN ENVIRONMENTS PROTECTED BY SEGS

Microsoft EOP

CISCO Ironport 



By Elmer Hernandez, Cofense Phishing Defense Center

With new vulnerabilities come new updates and patches. Organizations have
complex environments making it difficult to roll out patches quickly and often
find themselves in a race to patch systems before threat actors can exploit
them. Attackers are aware of this delayed timing and may try take advantage of
this patching cycle time. The Cofense Phishing Defense Center (PDC) has spotted
such an attempt, with an email delivering an HTML application (HTA) file
attachment being distributed as fake patches for a new vulnerability affecting
the Chrome web browser.

The email was received by one of our PDC customers with well-conditioned users
who quickly report. It warns the user about a recently reported vulnerability in
Google Chrome and a corresponding update for the employee to apply. A web
browser like Chrome is a vital everyday tool for employees across several
industries, so threat actors urge recipients to apply the update within 48 hours
or functionality may cease (Figure 1). However, any seasoned Chrome user knows
these updates are available directly within Chrome, and enterprise users know
their IT department manages pushing out software updates.



Figure 1 – Email

After clicking, the user arrives at the payload site
hxxps://vpnupdate[.]net/chrome[.]html. The page is styled with the well-known
Chrome logo and includes a loading GIF to give the impression of a legitimate
download (Figure 2). Within a few seconds the browser will download an HTA file
called update.hta (Figure 3).



Figure 2 – Payload Site



Figure 3 – Payload

HTA files are standalone applications, composed of HTML and JavaScript or VBS.
However, they are not executed in the context of a web browser, sidestepping any
browser-based security measures. Instead, HTA files run using mshta.exe, a
legitimate Microsoft binary. Like other utilities often used in
living-off-the-land tactics such as PowerShell, mshta.exe is a well-known tool
that grants attackers the ability to execute malicious code on the targeted
system.

When opening the file, the user discovers that the vulnerability in question is
CVE-2021-30554 (Figure 4). This is a recently reported zero-day vulnerability
affecting the WebGL API of Chromium, an open-source code base used in some of
the most popular web browsers including Chrome and Microsoft Edge. Most
importantly, exploits have been confirmed in the wild, making the vulnerability
a real danger for unpatched browser versions. It is evident threat actors are up
to date with security developments as well as organizations’ efforts to patch
vulnerable systems.



Figure 4 – Update

The application’s UI is similar to that of the payload site, displaying the
Chrome logo but, this time, asking the user to click the “Run Update” button.
The user eventually gets confirmation that the update has been applied (Figure
5). This user interaction is just for show; a small piece of JavaScript at the
end of the file refreshes the UI to give the impression that something happened.



Figure 5 – Update Applied

The only apparent action of consequence takes place when opening the HTA file, a
product of a short VBS script (Figure 6). In essence, the script gathers the
username of the current user as well as the name of the system and includes this
in a GET HTTP request to hxxp://vpnupdate[.]net/update. However, the page is
down (Figure 7).



Figure 6 – VBS script



Figure 7 – HTTP GET Request

It is unclear if a secondary payload was to be retrieved from the site, or if
the threat actors are conducting initial reconnaissance/testing to identify
potential victims for a follow-up attack. Whichever the case may be, it’s
important to be aware of the varied ways threat actors can get users to execute
malicious code in targeted systems. While malicious HTA files are not new, they
remain an uncommon tactic that can be used to run any JavaScript or VBS. Be on
the lookout for mshta.exe.

How Cofense Can Help

Employee conditioning is key. Cofense PhishMe can help increase threat awareness
in your organization through phishing simulation and training programs in order
to prepare staff for this, and myriad other threats. When the real thing comes
knocking at your users’ inbox, Cofense Reporter empowers employees to put their
training to use and become active defenders, sending the threat to your security
team, or to us in the Phishing Defense Center for a managed phishing detection
and response solution.

Indicators of Compromise

 

hxxps://vpnupdate[.]net/chrome[.]html 35.178.206.100



 

 

File IoC

 

Name update.hta



 

MD5 3c7d740f238f892da4200d9269dd1aca



 

SHA256 c6813d0e87cd871df88a7ab72133ad110784d5fa9dab88d1f9218e83e446e2b0



 

Size 125938 bytes (122K)



 

 

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