Analysis
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max time kernel
149s -
max time network
155s -
platform
android_x86 -
resource
android-x86-arm-20240624-en -
resource tags
androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system -
submitted
15-12-2024 22:03
Behavioral task
behavioral1
Sample
74ad53392208c1c7f0da7f57028706c94075faaeb231b41229f540eed8aabd20.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
74ad53392208c1c7f0da7f57028706c94075faaeb231b41229f540eed8aabd20.apk
Resource
android-x64-20240910-en
Behavioral task
behavioral3
Sample
74ad53392208c1c7f0da7f57028706c94075faaeb231b41229f540eed8aabd20.apk
Resource
android-x64-arm64-20240910-en
General
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Target
74ad53392208c1c7f0da7f57028706c94075faaeb231b41229f540eed8aabd20.apk
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Size
916KB
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MD5
a0fe7fed56da355fdb9081fe07bf8e01
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SHA1
2e716df78b250592c95ddb6eb1794620486e5f6a
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SHA256
74ad53392208c1c7f0da7f57028706c94075faaeb231b41229f540eed8aabd20
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SHA512
02e80f2e34262c8a970cf4650e5358a85b0e641457034fc04bbcae44377e8bd5b4c75068bae99560f6d9eb09d85babebb077fa20123da635c497069974e8b076
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SSDEEP
24576:Kg/ev5O22FXmZ/SmZFN5HulX45YDEWqUJyo3h:Kg/RbFXcFnuI5Wp3h
Malware Config
Extracted
ermac
http://194.26.192.75:3434
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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pid Process 4267 com.yetozihapakeyexi.cavu -
Makes use of the framework's Accessibility service 4 TTPs 3 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.yetozihapakeyexi.cavu Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.yetozihapakeyexi.cavu Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.yetozihapakeyexi.cavu -
Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Acquires the wake lock 1 IoCs
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.yetozihapakeyexi.cavu -
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.
description ioc Process Framework service call android.app.IActivityManager.setServiceForeground com.yetozihapakeyexi.cavu -
Performs UI accessibility actions on behalf of the user 1 TTPs 7 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yetozihapakeyexi.cavu -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.yetozihapakeyexi.cavu -
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
description ioc Process Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.yetozihapakeyexi.cavu -
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
description ioc Process Framework service call android.app.IActivityManager.registerReceiver com.yetozihapakeyexi.cavu -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.yetozihapakeyexi.cavu -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.yetozihapakeyexi.cavu -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.yetozihapakeyexi.cavu
Processes
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com.yetozihapakeyexi.cavu1⤵
- 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
PID:4267
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