Analysis
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max time kernel
147s -
max time network
149s -
platform
android_x86 -
resource
android-x86-arm-20240624-en -
resource tags
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submitted
19-09-2024 22:13
General
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Target
5fc05d16afdc2bea9805705ccbb1cf95e040aee21cc73eb14560c8fa59f3a396.apk
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Size
958KB
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MD5
16a3cebba887d49278d10f3b62c3119f
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SHA1
f9f22b91fe19a8f47821553b2c3d1e36899dcf5a
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SHA256
5fc05d16afdc2bea9805705ccbb1cf95e040aee21cc73eb14560c8fa59f3a396
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SHA512
b544f3dea7f5b8e185fbe249a3fcbed06b100faab0b19bc8f10dd2353698857ea6010ebe97144a73f0be513247257818e8f37c8d52c75df3cd86ef1cfce43beb
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SSDEEP
24576:A4f06d8Dd8jRd8Nd85b3d8Jlid8Hd8wd8Aed82d8AMLjYth1U6hgGHn:A4fhy41UqgYn
Malware Config
Extracted
ermac
http://31.42.185.144:3434
Signatures
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Ermac
An Android banking trojan first seen in July 2021.
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Removes its main activity from the application launcher 1 TTPs 1 IoCs
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Makes use of the framework's Accessibility service 4 TTPs 3 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
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Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Acquires the wake lock 1 IoCs
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Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs
Application may abuse the framework's foreground service to continue running in the foreground.
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Performs UI accessibility actions on behalf of the user 1 TTPs 11 IoCs
Application may abuse the accessibility service to prevent their removal.
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Queries the mobile country code (MCC) 1 TTPs 1 IoCs
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Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
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Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
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Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
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Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
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Checks CPU information 2 TTPs 1 IoCs
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Checks memory information 2 TTPs 1 IoCs
Processes
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nusku.ermacv2.apk1⤵
- Removes its main activity from the application launcher
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
Network
MITRE ATT&CK Mobile v15
Persistence
Event Triggered Execution
1Broadcast Receivers
1Foreground Persistence
1Defense Evasion
Foreground Persistence
1Hide Artifacts
2Suppress Application Icon
1User Evasion
1Impair Defenses
1Prevent Application Removal
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2