Analysis
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max time kernel
148s -
max time network
152s -
platform
android-10_x64 -
resource
android-x64-20240910-en -
resource tags
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submitted
09-01-2025 22:02
General
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Target
2dccf119726b8876dc1bfd24882c48b3afd50182dadccd282126fed9b4c16e78.apk
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Size
974KB
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MD5
d77e9fc97797e3eaa1a351b44e61c6b7
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SHA1
b675f36ba54a8daadb72033b58729f8ca587e780
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SHA256
2dccf119726b8876dc1bfd24882c48b3afd50182dadccd282126fed9b4c16e78
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SHA512
43de005257415f173aa342d36bda15c9adb18f39be388f1004350b859be1564d8895c0d956543c74d2a6f4cb0fc9082d20d1152938e1e6426541d8a5b6a905d7
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SSDEEP
24576:nbgSGUKqC7C+vCmCmtHCYtCeC2CNRCjC2DiyuF+N6CpoHaS:nbgScq6LvXv7DT62ncQNYaS
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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Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs
Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.
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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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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
- Obtains sensitive information copied to the device clipboard
- 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)
- 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
1Suppress Application Icon
1Impair Defenses
1Prevent Application Removal
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2Credential Access
Clipboard Data
1Input Capture
2GUI Input Capture
1Keylogging
1Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
3