Analysis
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max time kernel
176s -
max time network
185s -
platform
android_x64 -
resource
android-x64-20240611.1-en -
resource tags
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submitted
18-06-2024 22:52
General
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Target
329d1f03c5e00adc45f99f2fb88c8f94a3033688b39a8fbd80fa0644f845a088.apk
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Size
2.5MB
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MD5
e1436fe10b569b80654d9574777fea4f
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SHA1
381084e63f33aa090812a49fb2d66dc935207414
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SHA256
329d1f03c5e00adc45f99f2fb88c8f94a3033688b39a8fbd80fa0644f845a088
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SHA512
6a8e009dcb6745b7ee56fa3abcb8e97f626f8a212ebbfc06f2688b7fee27465d796c42a4f2555db6b567e42c3fc46ccbe9d9fa7ebecc0cdb348e0ba158722383
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SSDEEP
49152:e4xgYnm9ua3CqKxv6CHtmgqFSjuLMeRGe+xmoG0PdfNg/HZ:e4xgYm9ua3CqKxvVqFSjuXr+6SdsZ
Malware Config
Extracted
ermac
http://94.156.8.11:3434
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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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 5 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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com.cokunuceruva.wilusu1⤵
- 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