Analysis
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max time kernel
55s -
max time network
153s -
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
06-09-2024 22:00
Static task
static1
Behavioral task
behavioral1
Sample
84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98.apk
Resource
android-x64-20240910-en
Behavioral task
behavioral3
Sample
84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98.apk
Resource
android-x64-arm64-20240910-en
General
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Target
84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98.apk
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Size
1.5MB
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MD5
fe5fbedd1df6cba1429e17ad99d0219a
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SHA1
1177d3699678ec363fc144b938a9384246661316
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SHA256
84733961bb97d314bb231da9dc009e0713010b6062ebcdd31bb014434c798a98
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SHA512
3804441eb4cca4914ba1bda3dbd0137a4c843a65aa5bc7e358996b0839e171aceaf039f1c3928039fd4450f28f6e4f37c06a837ea038251805d1ad9d1b3fdcd8
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SSDEEP
24576:wMkMGmminxTff2GK0T/QtHNtT/qVt75tulRe/FDu1A1LQ/PLtvKemKsWhWmRP:XDGyf2GotJ/0dtufuFDlc/PLtyemHWh5
Malware Config
Extracted
cerberus
http://asdegrandersa.ru
Signatures
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pid Process 4779 com.park.walnut 4779 com.park.walnut -
Loads dropped Dex/Jar 1 TTPs 3 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.park.walnut/app_DynamicOptDex/oGb.json 4779 com.park.walnut [anon:dalvik-classes.dex extracted in memory from /data/user/0/com.park.walnut/app_DynamicOptDex/oGb.json] 4779 com.park.walnut [anon:dalvik-classes.dex extracted in memory from /data/user/0/com.park.walnut/app_DynamicOptDex/oGb.json] 4779 com.park.walnut -
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.park.walnut Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.park.walnut Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.park.walnut -
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.park.walnut -
Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.park.walnut android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.park.walnut android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.park.walnut android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.park.walnut -
Requests changing the default SMS application. 2 TTPs 1 IoCs
description ioc Process Intent action android.provider.Telephony.ACTION_CHANGE_DEFAULT com.park.walnut -
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.park.walnut -
Listens for changes in the sensor environment (might be used to detect emulation) 1 TTPs 1 IoCs
description ioc Process Framework API call android.hardware.SensorManager.registerListener com.park.walnut -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.park.walnut -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.park.walnut
Processes
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com.park.walnut1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Performs UI accessibility actions on behalf of the user
- Requests changing the default SMS application.
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Listens for changes in the sensor environment (might be used to detect emulation)
- Checks CPU information
- Checks memory information
PID:4779
Network
MITRE ATT&CK Mobile v15
Defense Evasion
Download New Code at Runtime
1Hide Artifacts
3Suppress Application Icon
1User Evasion
2Impair Defenses
1Prevent Application Removal
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2Credential Access
Clipboard Data
1Input Capture
2GUI Input Capture
1Keylogging
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
64KB
MD5c52d71f6df4b14b089e0fcd137b75443
SHA15c306d2c9c067bf06e889a781df451d80c300a52
SHA256b35aa8ffd88888c6f1b925101a7e4adab90fa779367a28c6b56e1540ca21f74c
SHA512a6a292569918e2f6bdb468a32d15337e1b7c90450ba3224d1e9fde3eece4326f4dd29748fa75f48ee43597dcb7ec7b696a891d1357619d098776b1fe71311b2e
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Filesize
64KB
MD5f41c951df8b5cebf80f534a8b9ed9599
SHA19f605185b2b6ee9ff5b33c90ca1691fe8e6d8e32
SHA2567aa6a909312c3a7fffad087afe439847d99bb2424962fea5c89dae9ac957206b
SHA512d61631da41222b6d2d3eb13852b1e16a8e3e4315ae8258b96d707a851d8bb3e2714aa3346048f68d1e379c8d896910e9fdb6bd955af1f6a72effb5e34028769a
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Filesize
118KB
MD5e2bfe5100c1fd218fa384ca199d81872
SHA197742f809762ba16c77fc4671799ca9024001285
SHA256c3994f692d7eb0e7b05d07ecbad1b76b46793fab46efeb379e7e9bc26784a75b
SHA5120b521b809af2e5e1c31e120f69470ec37d9500ff3e9a646da81a686ef996c581abba88376cc50c36004f828fd58d75a3b36cefc9d181a028830ec6cae1e47a0b
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Filesize
146B
MD509b10791f62da01aa66feb20bb592882
SHA18dc8d7204db8c492a0bd372efe6cdaacfa2f8408
SHA256adae33be4559e102d8d998e2ccc1c0a0aac9b9f2d61f881e86b5cc48bf740a74
SHA512807833962e6bdc41e165c100fff8917d68636d5f6d73f30193d83d1ee7eb7b2e0b1eb0238b037d7cc04dc2bd5395a5f3368229a1b19175af512bf32b3030ce26