Analysis
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max time kernel
149s -
max time network
162s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
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submitted
29-12-2024 22:02
General
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Target
700ccda759cf61eebd07af0bf4c6d2a686bf661a2bf95d27db1eed469a4f023d.apk
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Size
1.0MB
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MD5
1e05f5987c72c6d23e63e111a9271f90
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SHA1
4cbe56884281f05468cdd2075763985caa8addbc
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SHA256
700ccda759cf61eebd07af0bf4c6d2a686bf661a2bf95d27db1eed469a4f023d
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SHA512
5ba189049958c8a6dba55b811b2283c54648053a498e1ea26e251c49b93f2b100a973617901c881cf0caf3024e7b638b6832ee55a57fa04d1d92498c99fbe1c1
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SSDEEP
24576:xgSRUKqC7C+vCmCmtHCYtCeC2CNRCjC2DiyuF+N6CpoHa6:xgSzq6LvXv7DT62ncQNYa6
Malware Config
Extracted
ermac
http://154.216.20.225:3434
Signatures
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Ermac
An Android banking trojan first seen in July 2021.
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Ermac family
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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 a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
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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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Reads information about phone network operator. 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
2Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
4