Thursday, December 7, 2023

2 Android Apps From Google Play Store Launching Banking Malware With Sophisticated Evasion Techniques

Researchers discovered 2 Malicious Android apps from Google Play Store that drops Anubis banking malware with highly obfustication techniques.

The malicious apps posed as a legitimate tool with the name of Currency Converter and BatterySaverMobi and also attackers posted a fake review and boasted a score of 4.5 stars.

Google Play store continuously flooding with various malicious apps including adware, spyware, malware that targets the millions of Android users.

These new malicious apps intended to upload into Google Play store to infected Android users with Anubis Banking Malware.

Both Apps are contained thousands of download that affected various country users including Japan, Australia.US, Italy and more.

Malicious Apps Discovered in Play Store

These malicious apps just little ahead of normal evasion techniques and taking advantage of users and their activities in order to hide them using device motion.

Since the motion sensor always running on the Android mobile, it consuming little amount of data. but the sandbox for scanning malware is an emulator with no motion sensors.

So the developer assume that if there will be no sensor then the app is running under sandbox so the app will be immediately stopped using “kill” command and the malicious code will not run .

Infection Process with Anubis Malware

Initial analysis of Payload indicates that the code is similar to the Anubis Banking malware and it connected to the C&C server with Anubis linked domain.

Along with this 18 other malicious domain being operated under the same attacker control and the domains change IP addresses quite frequently.

Anubis malware basically posed as a legitimate apps and steal the users bank account information by request to grant permission to banking apps.

Unlike other banking malware that launch a fake overlay screen and monitor the user activities when they enter the key inputs

But Anubis malware little different that contain built-in keylogger future
that can simply steal a users’ account credentials by logging the keystrokes. 

Apart from this, it has an ability to take a screenshot of the victims mobile in order to steal the users data.

According to Trend Micro research, Our data shows that the latest version of Anubis has been distributed to 93 different countries and targets the users of 377 variations of financial apps to farm account details. We can also see that, if Anubis successfully runs, an attacker would gain access to contact lists as well as location. 

Also it can perform other malicious activities including record audio, send SMS messages, make calls, and alter external storage. Anubis can use these permissions to send spam messages to contacts, call numbers from the device, and other malicious activities.

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BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

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