Analysis
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max time kernel
147s -
max time network
159s -
platform
android-11_x64 -
resource
android-x64-arm64-20240910-en -
resource tags
arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system -
submitted
13-12-2024 22:00
Behavioral task
behavioral1
Sample
2bad5d3f3eaa350b15966f2556de99a4e0fa06632c79c282a07df83d25aa2794.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
2bad5d3f3eaa350b15966f2556de99a4e0fa06632c79c282a07df83d25aa2794.apk
Resource
android-x64-20240624-en
Behavioral task
behavioral3
Sample
2bad5d3f3eaa350b15966f2556de99a4e0fa06632c79c282a07df83d25aa2794.apk
Resource
android-x64-arm64-20240910-en
General
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Target
2bad5d3f3eaa350b15966f2556de99a4e0fa06632c79c282a07df83d25aa2794.apk
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Size
1.1MB
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MD5
696083849beb1457b64dc1b213e4f231
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SHA1
74f2dc2b32359bc10fe41d8fc223293d7c6b09c2
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SHA256
2bad5d3f3eaa350b15966f2556de99a4e0fa06632c79c282a07df83d25aa2794
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SHA512
a91374a20073f6599ccc3ac0d86495a0c92469d41d0fe64d72a2f381ed15f80f9f0937c796e96dae40f4dcecaa44a0a29af7bb018070ff33fdcd950914d9e846
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SSDEEP
24576:1g/zryozMA78Fm1I+Tw78WE3uZLeiZKSrwA+tYaaly9KOKWot9ce58s5C:1g/VYAwF8wwWE3Uei9wSaSJBWuSs4
Malware Config
Extracted
ermac
http://45.94.31.93:3434
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 4634 com.yoratufofice.mepu -
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.findAccessibilityNodeInfosByText com.yoratufofice.mepu Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.yoratufofice.mepu Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.yoratufofice.mepu -
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.
description ioc Process Framework service call android.content.IClipboard.addPrimaryClipChangedListener com.yoratufofice.mepu -
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
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.yoratufofice.mepu -
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.yoratufofice.mepu -
Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yoratufofice.mepu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yoratufofice.mepu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yoratufofice.mepu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yoratufofice.mepu android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.yoratufofice.mepu -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.yoratufofice.mepu -
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
description ioc Process Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.yoratufofice.mepu -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.yoratufofice.mepu -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.yoratufofice.mepu -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.yoratufofice.mepu
Processes
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com.yoratufofice.mepu1⤵
- 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)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4634
Network
MITRE ATT&CK Mobile v15
Defense Evasion
Foreground Persistence
1Hide Artifacts
2Suppress Application Icon
1User Evasion
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
4