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Blog Other Blogs McAfee Labs Android SpyNote attacks electric and water public
utility users in Japan


ANDROID SPYNOTE ATTACKS ELECTRIC AND WATER PUBLIC UTILITY USERS IN JAPAN



McAfee Labs

Jul 21, 2023

5 MIN READ

Authored by Yukihiro Okutomi 

McAfee’s Mobile team observed a smishing campaign against Japanese Android users
posing as a power and water infrastructure company in early June 2023. This
campaign ran for a short time from June 7. The SMS message alerts about payment
problems to lure victims to a phishing website to infect the target devices with
a remote-controlled SpyNote malware. In the past, cybercriminals have often
targeted financial institutions. However, on this occasion, public utilities
were the target to generate a sense of urgency and push victims to act
immediately. Protect your Android and iOS mobile devices with McAfee Mobile
Security.


SMISHING ATTACK CAMPAIGN 

A phishing SMS message impersonating a power or water supplier claims a payment
problem, as shown in the screenshot below. The URL in the message directs the
victim to a phishing website to download mobile malware. 



Notice of suspension of power transmission because of non-payment of charges
from a power company in Tokyo (Source: Twitter) 



Notice of suspension of water supply because of non-payment of charges from a
water company in Tokyo (Source: Twitter) 

 

When accessed with a mobile browser, it will start downloading malware and
display a malware installation confirmation dialog. 



The confirmation dialog of Spyware installation via browser (Source: Twitter) 


SPYNOTE MALWARE 

SpyNote is a known family of malware that proliferated after its source code was
leaked in October 2022. Recently, the malware was used in a campaign targeting
financial institutions in January and targeting Bank of Japan in April 2023.  

The SpyNote malware is remotely controlled spyware that exploits accessibility
services and device administrator privileges. It steals device information and
sensitive user information such as device location, contacts, incoming and
outgoing SMS messages, and phone calls. The malware deceives users by using
legitimate app icons to look real. 



Application Icons disguised by malware. 

After launching the malware, the app opens a fake settings screen and prompts
the user to enable the Accessibility feature. When the user clicks the arrow at
the bottom of the screen, the system Accessibility service settings screen is
displayed. 



A fake setting screen (left), system setting screen (center and right) 

By allowing the Accessibility service, the malware disables battery optimization
so that it can run in the background and automatically grants unknown source
installation permission to install another malware without the user’s knowledge.
In addition to spying on the victim’s device, it also steals two-factor
authentication on Google Authenticator and Gmail and Facebook information from
the infected device. 

Although the distribution method is different, the step of requesting
Accessibility service after launching the app is similar to the case of the Bank
of Japan that occurred in April. 

Scammers keep up with current events and attempt to impersonate well-known
companies that have a reason to reach out to their customers. The mobile malware
attack using SpyNote discovered this time targets mobile apps for life
infrastructure such as electricity and water. One of the reasons for this is
that electric bills and water bills, which used to be issued on paper, are now
managed on the web and mobile app. If you want to learn about smishing, consult
this article “What Is Smishing? Here’s How to Spot Fake Texts and Keep Your Info
Safe”. McAfee Mobile Security detects this threat as Android/SpyNote and alerts
mobile users if it is present and further protects them from any data loss. For
more information, visit McAfee Mobile Security. 


INDICATORS OF COMPROMISE (IOC) 

C2 Server: 

 * 104.233.210.35:27772 

Malware Samples: 

SHA256 Hash  Package name  Application name 
075909870a3d16a194e084fbe7a98d2da07c8317fcbfe1f25e5478e585be1954 
com.faceai.boot  キャリア安全設定 
e2c7d2acb56be38c19980e6e2c91b00a958c93adb37cb19d65400d9912e6333f 
com.faceai.boot  東京電力 
a532c43202c98f6b37489fb019ebe166ad5f32de5e9b395b3fc41404bf60d734 
com.faceai.boot  東京電力TEPCO 
cb9e6522755fbf618c57ebb11d88160fb5aeb9ae96c846ed10d6213cdd8a4f5d 
com.faceai.boot  東京電力TEPCO 
59cdbe8e4d265d7e3f4deec3cf69039143b27c1b594dbe3f0473a1b7f7ade9a6 
com.faceai.boot  東京電力TEPCO 
8d6e1f448ae3e00c06983471ee26e16f6ab357ee6467b7dce2454fb0814a34d2 
com.faceai.boot  東京電力TEPCO 
5bdbd8895b9adf39aa8bead0e3587cc786e375ecd2e1519ad5291147a8ca00b6 
com.faceai.boot  東京電力TEPCO 
a6f9fa36701be31597ad10e1cec51ebf855644b090ed42ed57316c2f0b57ea3c 
com.faceai.boot  東京電力TEPCO 
f6e2addd189bb534863afeb0d06bcda01d0174f5eac6ee4deeb3d85f35449422 
com.faceai.boot  東京電力TEPCO 
755585571f47cd71df72af0fad880db5a4d443dacd5ace9cc6ed7a931cb9c21d 
com.faceai.boot  東京電力TEPCO 
2352887e3fc1e9070850115243fad85c6f1b367d9e645ad8fc7ba28192d6fb85 
com.faceai.boot  東京電力TEPCO 
90edb28b349db35d32c0190433d3b82949b45e0b1d7f7288c08e56ede81615ba 
com.faceai.boot  東京電力TEPCO 
513dbe3ff2b4e8caf3a8040f3412620a3627c74a7a79cce7d9fab5e3d08b447b 
com.faceai.boot  東京電力TEPCO 
f6e2addd189bb534863afeb0d06bcda01d0174f5eac6ee4deeb3d85f35449422 
com.faceai.boot  東京電力TEPCO 
0fd87da37712e31d39781456c9c1fef48566eee3f616fbcb57a81deb5c66cbc1 
com.faceai.boom  東京水道局アプリ 
acd36f7e896e3e3806114d397240bd7431fcef9d7f0b268a4e889161e51d802b 
com.faceai.boom  東京水道局アプリ 
91e2f316871704ad7ef1ec74c84e3e4e41f557269453351771223496d5de594e 
com.faceai.boom  東京水道局アプリ 

 

 

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