withzefi.github.io
Open in
urlscan Pro
2606:50c0:8002::153
Malicious Activity!
Public Scan
Submission: On October 29 via automatic, source openphish — Scanned from DE
Summary
TLS certificate: Issued by DigiCert Global G2 TLS RSA SHA256 202... on March 15th 2024. Valid for: a year.
This is the only time withzefi.github.io was scanned on urlscan.io!
urlscan.io Verdict: Potentially Malicious
Targeting these brands: Netflix (Online)Domain & IP information
IP Address | AS Autonomous System | ||
---|---|---|---|
1 6 | 2606:50c0:800... 2606:50c0:8002::153 | 54113 (FASTLY) (FASTLY) | |
2 | 2606:4700::68... 2606:4700::6811:180e | 13335 (CLOUDFLAR...) (CLOUDFLARENET) | |
6 6 | 2606:4700::68... 2606:4700::6812:6fa1 | 13335 (CLOUDFLAR...) (CLOUDFLARENET) | |
5 | 2a00:86c0:105... 2a00:86c0:1055:1055::142 | 2906 (AS-SSI) (AS-SSI) | |
1 | 111.119.161.114 111.119.161.114 | 132165 (CONNECT-A...) (CONNECT-AS-AP Connect Communications) | |
3 | 2a00:86c0:209... 2a00:86c0:2091::1 | 40027 (NETFLIX-ASN) (NETFLIX-ASN) | |
1 | 2401:4300:4:3... 2401:4300:4:3::12 | 45184 (DEN-ISP-A...) (DEN-ISP-AS-IN-AP Den Digital Entertainment Pvt. Ltd. AS ISP india) | |
1 | 2a00:1450:400... 2a00:1450:4001:830::200a | 15169 (GOOGLE) (GOOGLE) | |
18 | 7 |
ASN132165 (CONNECT-AS-AP Connect Communications, PK)
occ-0-3587-64.1.nflxso.net |
ASN45184 (DEN-ISP-AS-IN-AP Den Digital Entertainment Pvt. Ltd. AS ISP india, IN)
occ-0-2849-3646.1.nflxso.net |
Apex Domain Subdomains |
Transfer | |
---|---|---|
7 |
nflxso.net
occ-0-3587-64.1.nflxso.net occ-0-2849-3646.1.nflxso.net |
353 KB |
6 |
tinyurl.com
6 redirects
tinyurl.com — Cisco Umbrella Rank: 17963 |
6 KB |
6 |
github.io
1 redirects
withzefi.github.io |
231 KB |
3 |
nflxext.com
assets.nflxext.com — Cisco Umbrella Rank: 4879 |
133 KB |
2 |
cloudflare.com
cdnjs.cloudflare.com — Cisco Umbrella Rank: 220 |
173 KB |
1 |
googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 30 |
1 KB |
18 | 6 |
Domain | Requested by | |
---|---|---|
6 | occ-0-3587-64.1.nflxso.net |
withzefi.github.io
|
6 | tinyurl.com | 6 redirects |
6 | withzefi.github.io |
1 redirects
withzefi.github.io
|
3 | assets.nflxext.com |
withzefi.github.io
|
2 | cdnjs.cloudflare.com |
withzefi.github.io
cdnjs.cloudflare.com |
1 | fonts.googleapis.com |
withzefi.github.io
|
1 | occ-0-2849-3646.1.nflxso.net |
withzefi.github.io
|
18 | 7 |
This site contains no links.
Subject Issuer | Validity | Valid | |
---|---|---|---|
*.github.io DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
2024-03-15 - 2025-03-14 |
a year | crt.sh |
cdnjs.cloudflare.com WE1 |
2024-09-28 - 2024-12-27 |
3 months | crt.sh |
*.1.nflxso.net DigiCert Secure Site ECC CA-1 |
2024-10-16 - 2024-11-16 |
a month | crt.sh |
upload.video.google.com WR2 |
2024-10-07 - 2024-12-30 |
3 months | crt.sh |
This page contains 1 frames:
Primary Page:
https://withzefi.github.io/Netflix-Clone/
Frame ID: 56FF5FDE6C7251F88C1BF50D4ECA0434
Requests: 18 HTTP requests in this frame
Screenshot
Page Title
Netflix - ClonePage URL History Show full URLs
-
https://withzefi.github.io/Netflix-Clone
HTTP 301
https://withzefi.github.io/Netflix-Clone/ Page URL
Detected technologies
Font Awesome (Font Scripts) ExpandDetected patterns
- <link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
- (?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
GitHub Pages (CDN) Expand
Detected patterns
- ^https?://[^/]+\.github\.io
Page Statistics
0 Outgoing links
These are links going to different origins than the main page.
Page URL History
This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.
-
https://withzefi.github.io/Netflix-Clone
HTTP 301
https://withzefi.github.io/Netflix-Clone/ Page URL
Redirected requests
There were HTTP redirect chains for the following requests:
Request Chain 3- https://tinyurl.com/ycxfspwk HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABURBNyKLvtOiqqGV4Hvr_TCv_0vsIVwnOS6222UEJJgRUnPIlmdpi09o8WxyJv-W36uSwRWFny8QNxoD2ytNxGU9GvkRQDE47ZPSK4Mbyn4Ls32_y-YlQJ9066Z6s_OkejUI3wP6pKknrV--eDsbgqq2T7jn7ExStiFf10OG1L4nzjmkQ9J8eqTrDJsyYzKQ76aIisEkuIJ44522DmQ43BcnrCT-GRYxXIw7Wm3IxaOOYKPymsCVIjYTQZPn4M-sfam0yTo7LXzgvcSoJIhizj2c7lHwfckY0Q8qBjDsf0St454YqqU3u8Iwo4LIgSPJES7CEAbUXy-ACAwdc3felI8.webp?r=17c
- https://tinyurl.com/z23d29fk HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABfLVuuVfs_wZnM9tnilDfogcMIWgPku1LeawQptCdOzIOTM_wSOkAYXABRudLsalnkll6XGY_9VqlUfjhD5RYwjCj1dLSfXQ6LW41_4sq1m4qlmbuitRLMe7akZXaKpn1DI_i0CW9ng_aY82m3wiytS2JP9odXMCaBrPhrf6nC53huY0srtAMMoJG8zSivlA-CkCDyAdVITsX_W0kMuUxyFYt-InQJvRFQXvAdSbxrg0r015BgeMqNEBCLk5UZdMk7N-xw0Kdv-OQvw-_whpqDawvDtzqTPd1L0rVuZiwJRX4mwXd2KNC1LIKM3stck4rkikAl4eqjlNwH0_V6izv_5pw77E80IRvVdgjzjb-dld9NxY8jI.webp?r=21e
- https://tinyurl.com/heaksty7 HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABcb3RIYmZVO3IEu2ZzkxeislMWSPqozwjSKIMiNGYrjCp9K-qV1k-WzlHPiO-vjdW72fGKhWEuxmrQ7KuucFgUISTcPzi0jCJDYm1my3mNRIYJEv4omO5eNfuYSFpgjKQjUDV8rix7YFvRWJGvp71ypBLRzfWY9qmgTnGaSO11lS_T6Mz4ALBdDqlNAuq7yRzP3sn2gk4sX9vYCqCp8JmqtTh4kpZOQV-ScGm87EBVkcQkZcWDjjPBjP-uFxo4FaMc-I_tcjYOlEwFxb17nwEQtOVlC_.webp?r=738
- https://tinyurl.com/ms3sh6ub HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABa8LvuivpAcPMTDJekkjIvCSv37XsnLn33IqwF2UmCSqRyr1XaQTTXThSCPjQIROH4UC9QHc-Y7af63jTKgeTY1Ch5T_m5gmyZfC8vxlxSjbio10ur6H6ORMMCdwBqu-ZjL6BpNSgRrJno7IjHLjmM5Raut2zr3GOOVgOrFECY6kYolPbvHcdjtZ2r2OY17XS167xkVwKpZl6KuRYsbYnxtTeEYo5I3OIBhMm5ke4FKKIcz0p_D5DRabVa7XM3gGpbZckl_uOKOOdTj5UMrmt-kILnzzIx1viITTQc7LXpdPFy-YpCmXvARm.webp?r=eb0
- https://tinyurl.com/57d2hkta HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABUUfGCR6rTmW0Pnzp5QoRiG6Ra7Dl42x76Ok88wIOAyyy3MMZj7v21yGSPwySFrIm28qRkDRDCWN8qHBZctglLdIdHdIqQtRD_BbIFa7ZHtBIA4GPBfQhDXZuzrxSIi32SFfgFIqplJGxscOct_9dKrDERv4ZIZbogsv0bynj5wxvOtzFrqnM93ExtD1mqZit-KwHNBKue38bri_W23YhhwbBOOYDG_z-Bc80OUr9loItbAELQT7cRjdV_zlRNbEtCo4-fAvma5qsaoyJUvu_wptNAWVHJr9Am9atCqjxU1effwk2Qnik2yskFlYsFYr7kCsXTQnXFS_oXp1dr_RC8rDQWWeJol-kPmM4EHVY--5q23R3wc.webp?r=fec
- https://tinyurl.com/sz7hnxph HTTP 301
- https://occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/AAAABTRf3rZxfSnQq5rIQlMuefGWtoaAVfnwAshXcM11mXRBj2cYdYLrgxdyPN-P0bwtalS68wxF3m0V56_DLWXUUIjxy1qETK5a9QBVMJ35xdFIL-vjkOgeZ-0SCi1w7CW99wb2b3-k0b5MOwuIui1TkoPyO-tthG6OGEY.webp?r=6b0
18 HTTP transactions
Method Protocol |
Resource Path |
Size x-fer |
Type MIME-Type |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GET H2 |
Primary Request
/
withzefi.github.io/Netflix-Clone/ Redirect Chain
|
5 KB 2 KB |
Document
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H3 |
all.min.css
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/css/ |
94 KB 19 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
style.css
withzefi.github.io/Netflix-Clone/ |
6 KB 2 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
logo.svg
withzefi.github.io/Netflix-Clone/resources/Images/ |
2 KB 1 KB |
Image
image/svg+xml |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABURBNyKLvtOiqqGV4Hvr_TCv_0vsIVwnOS6222UEJJgRUnPIlmdpi09o8WxyJv-W36uSwRWFny8QNxoD2ytNxGU9GvkRQDE47ZPSK4Mbyn4Ls32_y-YlQJ9066Z6s_OkejUI3wP6pKknrV--eDsbgqq2T7jn7ExStiFf10OG1L4nzjmkQ9J8eqTrDJsyYzKQ7...
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
20 KB 20 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABfLVuuVfs_wZnM9tnilDfogcMIWgPku1LeawQptCdOzIOTM_wSOkAYXABRudLsalnkll6XGY_9VqlUfjhD5RYwjCj1dLSfXQ6LW41_4sq1m4qlmbuitRLMe7akZXaKpn1DI_i0CW9ng_aY82m3wiytS2JP9odXMCaBrPhrf6nC53huY0srtAMMoJG8zSivlA-...
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
14 KB 14 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABcb3RIYmZVO3IEu2ZzkxeislMWSPqozwjSKIMiNGYrjCp9K-qV1k-WzlHPiO-vjdW72fGKhWEuxmrQ7KuucFgUISTcPzi0jCJDYm1my3mNRIYJEv4omO5eNfuYSFpgjKQjUDV8rix7YFvRWJGvp71ypBLRzfWY9qmgTnGaSO11lS_T6Mz4ALBdDqlNAuq7yRz...
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
18 KB 19 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABa8LvuivpAcPMTDJekkjIvCSv37XsnLn33IqwF2UmCSqRyr1XaQTTXThSCPjQIROH4UC9QHc-Y7af63jTKgeTY1Ch5T_m5gmyZfC8vxlxSjbio10ur6H6ORMMCdwBqu-ZjL6BpNSgRrJno7IjHLjmM5Raut2zr3GOOVgOrFECY6kYolPbvHcdjtZ2r2OY17XS...
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
20 KB 20 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABUUfGCR6rTmW0Pnzp5QoRiG6Ra7Dl42x76Ok88wIOAyyy3MMZj7v21yGSPwySFrIm28qRkDRDCWN8qHBZctglLdIdHdIqQtRD_BbIFa7ZHtBIA4GPBfQhDXZuzrxSIi32SFfgFIqplJGxscOct_9dKrDERv4ZIZbogsv0bynj5wxvOtzFrqnM93ExtD1mqZit...
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
17 KB 18 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABTRf3rZxfSnQq5rIQlMuefGWtoaAVfnwAshXcM11mXRBj2cYdYLrgxdyPN-P0bwtalS68wxF3m0V56_DLWXUUIjxy1qETK5a9QBVMJ35xdFIL-vjkOgeZ-0SCi1w7CW99wb2b3-k0b5MOwuIui1TkoPyO-tthG6OGEY.webp
occ-0-3587-64.1.nflxso.net/dnm/api/v6/mAcAr9TxZIVbINe88xb3Teg5_OA/ Redirect Chain
|
13 KB 14 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
Redirect headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
mobile-0819.jpg
assets.nflxext.com/ffe/siteui/acquisition/ourStory/fuji/desktop/ |
48 KB 49 KB |
Image
image/jpeg |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
tv.png
assets.nflxext.com/ffe/siteui/acquisition/ourStory/fuji/desktop/ |
11 KB 11 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
AAAABVr8nYuAg0xDpXDv0VI9HUoH7r2aGp4TKRCsKNQrMwxzTtr-NlwOHeS8bCI2oeZddmu3nMYr3j9MjYhHyjBASb1FaOGYZNYvPBCL.png
occ-0-2849-3646.1.nflxso.net/dnm/api/v6/19OhWN2dO19C9txTON9tvTFtefw/ |
249 KB 249 KB |
Image
image/png |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H/1.1 |
video-devices-in.m4v
assets.nflxext.com/ffe/siteui/acquisition/ourStory/fuji/desktop/ |
73 KB 73 KB |
Media
video/x-m4v |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
css2
fonts.googleapis.com/ |
16 KB 1 KB |
Stylesheet
text/css |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
bg.webp
withzefi.github.io/Netflix-Clone/resources/Images/ |
220 KB 220 KB |
Image
image/webp |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H3 |
fa-solid-900.woff2
cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/webfonts/ |
154 KB 154 KB |
Font
application/octet-stream |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
GET H2 |
favicon.ico
withzefi.github.io/ |
9 KB 5 KB |
Other
text/html |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
General
Request headers
Response headers
|
Verdicts & Comments Add Verdict or Comment
Potentially malicious activity detected
Disclaimer: These verdicts should be used to detect potentially malicious websites, not as a final verdict!
urlscan
Phishing against: Netflix (Online)0 JavaScript Global Variables
These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.
1 Cookies
Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.
Domain/Path | Expires | Name / Value |
---|---|---|
.tinyurl.com/ | Name: __cf_bm Value: hw5KTVTSmT.IgnHbuNlxzXjMgkdp6KYvsmpPUAOo7Ls-1730164117-1.0.1.1-6J.7SioNvs_s.nhnvHkfwMUzc_g6X7AUhom9f1AgFdZZen.Ph9r2427aT.W8yRqbSSstGReTZyLaLS0LrubocQ |
1 Console Messages
A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.
Source | Level | URL Text |
---|
Security Headers
This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page
Header | Value |
---|---|
Strict-Transport-Security | max-age=31556952 |
Indicators
This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.
assets.nflxext.com
cdnjs.cloudflare.com
fonts.googleapis.com
occ-0-2849-3646.1.nflxso.net
occ-0-3587-64.1.nflxso.net
tinyurl.com
withzefi.github.io
111.119.161.114
2401:4300:4:3::12
2606:4700::6811:180e
2606:4700::6812:6fa1
2606:50c0:8002::153
2a00:1450:4001:830::200a
2a00:86c0:1055:1055::142
2a00:86c0:2091::1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