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Analysis
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max time kernel
55s -
max time network
158s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system -
submitted
21/01/2025, 22:02
Static task
static1
Behavioral task
behavioral1
Sample
a2f0035866dc38ec81015a5a7a811ef3a1ece46f6b468d49cc6a0cfa229a7bb8.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
a2f0035866dc38ec81015a5a7a811ef3a1ece46f6b468d49cc6a0cfa229a7bb8.apk
Resource
android-x64-20240910-en
Behavioral task
behavioral3
Sample
a2f0035866dc38ec81015a5a7a811ef3a1ece46f6b468d49cc6a0cfa229a7bb8.apk
Resource
android-x64-arm64-20240910-en
General
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Target
a2f0035866dc38ec81015a5a7a811ef3a1ece46f6b468d49cc6a0cfa229a7bb8.apk
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Size
1.6MB
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MD5
1c8099406399e8553e2ef70136d1ed36
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SHA1
ec3baa23bb957eaa54d4346767f147948c69df84
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SHA256
a2f0035866dc38ec81015a5a7a811ef3a1ece46f6b468d49cc6a0cfa229a7bb8
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SHA512
65eb1f4fad0b1a5b71b472f8fdfb0131bac2d6267e19ec92d2922b4c6f8319b135928c8da99abebea39f924a3d514548520e13bdda4158d34dd3982d6f4e2cb3
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SSDEEP
49152:Xo2KkY4WubyhEVLVpEH1y40pt45qTG0ML20:WE1CUpEPC0
Malware Config
Extracted
cerberus
http://188.120.225.180/
Signatures
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Cerberus family
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pid Process 4219 com.hamster.rib 4219 com.hamster.rib -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.hamster.rib/app_DynamicOptDex/xrXT.json 4245 /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.hamster.rib/app_DynamicOptDex/xrXT.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.hamster.rib/app_DynamicOptDex/oat/x86/xrXT.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.hamster.rib/app_DynamicOptDex/xrXT.json 4219 com.hamster.rib -
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.hamster.rib Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.hamster.rib Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.hamster.rib -
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.hamster.rib android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.hamster.rib android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.hamster.rib android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.hamster.rib -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.hamster.rib -
Requests changing the default SMS application. 2 TTPs 1 IoCs
description ioc Process Intent action android.provider.Telephony.ACTION_CHANGE_DEFAULT com.hamster.rib -
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.hamster.rib -
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.hamster.rib -
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.hamster.rib -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.hamster.rib -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.hamster.rib
Processes
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com.hamster.rib1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- 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)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Checks CPU information
- Checks memory information
PID:4219 -
/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.hamster.rib/app_DynamicOptDex/xrXT.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.hamster.rib/app_DynamicOptDex/oat/x86/xrXT.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4245
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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
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
223B
MD5cd726263e1b42242bf2ff4d8f84736c5
SHA1c3652a960629d2ecaabf677b5165b24250271abe
SHA2569e5852bc9b3a71ae9c99ea330659c101cfcb7e52660481987083f482c7d6f6fa
SHA512f52fa1ac771c7fabd157e75d8f2d3fce433526c3c3e9a1eabdb11b2a1ab59d4cda203c8b90bc8c2fd5079824d36b43d638fe0ad11cddd6077c4f49e4f496d2e8
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Filesize
64KB
MD53e17739c1eb413ae5f0cb4f4058156be
SHA1315c7465c0ab22932767cf77ae58a40efe383936
SHA256f3d18a804d09656b2bfe81f2cb9b3e5bbdc332f92ae881ec32e47e9b9c237164
SHA512915fde1a5b64fe05afca8ae0e7300c7606ad3eb37c63068d4550042a5b58e0536c59f6dbf1f9dfb8c661354b51177a8d179c6607fa032a305f011913152dff09
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Filesize
64KB
MD5055a55bc934906b8a2d02005e0fcc093
SHA10ef03069e61dc6f0659de488897100067b40c651
SHA2566569f5543333ca6f34dafe14dbf973e7e7b5ac1fdb4b01c697039f299f5b63e8
SHA5121c35ef4b16d583909b1dc40d883611b8fee03838d46e000b0d68b664522a0d352095728fa4e10c46e946655b4478b997da57167419ca025b609eaa6264c47ef7
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Filesize
118KB
MD599700ea31627a7e6a880e347ffcc7380
SHA18497699a5570b57e790bdaa94a520c2e08bcc7a7
SHA25613718a6ee715c7df272860b16507e429c31a1d57f28049d6f30cfce00856b29b
SHA512f935ed9c81e362fc2e2c54853fd573aa2cba89456d125995b3c10e45f0c027319c0b2734649bbb5f522cf757a87babbb77c5c43f5e02b4aed7fdcfbb5e0e1892
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Filesize
118KB
MD5db06c1ec59829a13509af9b81aa47881
SHA11fc471dd01410676aac988badab9e636b9948f2b
SHA25681ed5dbd3f672f61f1b04d96b413cc4a0406572427dc88356f6be5ba15f65cdc
SHA51245dec5a2124e30a63f672fd047a66b6d47537cebc964ec5f6939fe1c9636ff569151a0f03ae43b8b3f427bb3331ce309c4effa160249b852a538817e69fb6132