Analysis
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max time kernel
151s -
max time network
161s -
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
18-08-2024 22:05
Static task
static1
Behavioral task
behavioral1
Sample
668dfd58ab661e0492d37e6f34a5b26934d6f123116b3fa6865d68b93b2244f7.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
668dfd58ab661e0492d37e6f34a5b26934d6f123116b3fa6865d68b93b2244f7.apk
Resource
android-x64-20240624-en
Behavioral task
behavioral3
Sample
668dfd58ab661e0492d37e6f34a5b26934d6f123116b3fa6865d68b93b2244f7.apk
Resource
android-x64-arm64-20240624-en
General
-
Target
668dfd58ab661e0492d37e6f34a5b26934d6f123116b3fa6865d68b93b2244f7.apk
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Size
1.8MB
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MD5
7549c5f9005ce0894b0ad7ba0072fce7
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SHA1
6c14c0994b1f53fb498b51aa40f25ff776db9080
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SHA256
668dfd58ab661e0492d37e6f34a5b26934d6f123116b3fa6865d68b93b2244f7
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SHA512
69b2c02e33575186fa2111d97a2304fd298de88ae281aebf113383c8e04949958b52781b1cb1ff5889c8d1d7c32111c13278e28d793c7727d5a924c57bdec714
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SSDEEP
49152:kSD3XTf8fqZZUVKiV+Vs99+NubRL6OTu9ZuFPBoBHLLYemJWhLX/:kI3XTOqZZ4df+sbBVaZKWBHLkemcZ
Malware Config
Extracted
cerberus
http://94.250.253.26
Signatures
-
pid Process 4254 com.silk.grocery 4254 com.silk.grocery -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.silk.grocery/app_DynamicOptDex/ItQt.json 4281 /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.silk.grocery/app_DynamicOptDex/ItQt.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.silk.grocery/app_DynamicOptDex/oat/x86/ItQt.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.silk.grocery/app_DynamicOptDex/ItQt.json 4254 com.silk.grocery -
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.silk.grocery Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.silk.grocery Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.silk.grocery -
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.silk.grocery android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.silk.grocery android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.silk.grocery android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.silk.grocery -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.silk.grocery -
Requests changing the default SMS application. 2 TTPs 1 IoCs
description ioc Process Intent action android.provider.Telephony.ACTION_CHANGE_DEFAULT com.silk.grocery -
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.silk.grocery -
Tries to add a device administrator. 2 TTPs 1 IoCs
description ioc Process Intent action android.app.action.ADD_DEVICE_ADMIN com.silk.grocery -
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.silk.grocery -
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.silk.grocery -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.silk.grocery -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.silk.grocery
Processes
-
com.silk.grocery1⤵
- 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).
- Tries to add a device administrator.
- 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:4254 -
/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.silk.grocery/app_DynamicOptDex/ItQt.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.silk.grocery/app_DynamicOptDex/oat/x86/ItQt.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4281
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Network
MITRE ATT&CK Mobile v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Device Administrator Permissions
1Defense 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
-
Filesize
35KB
MD50b3adde3e2ac0ebddb4f5fb49f13690a
SHA1e2e6ed18c8b80b17c552f4e975fba9b42beb52d6
SHA256f3684a64cf5b54e5452128a3e7f715ed163e57214208a90854692acd6c0286b1
SHA51200928b1d29080b7b416be73610d0a895a288c37564834680159da4b14c9ee6f10d64a9a5ff41eacae647cd6556e1457f784d2da72ef5ecf293c98d706f8b48aa
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Filesize
35KB
MD532e900a7510986bd618aedbb5f252842
SHA1ca1593efe2e24d4159091eb7e89efd312ceb1c38
SHA256de721969d079c1bde17ebc950a3750e7846e20204ee43a2d8fccb13e07011015
SHA512692f0d09bfb38d9ab8095ff4952cb2eb942ac7958d4d2dbb51b8ada09902b4eea641812aeae7488509838a0e7347a96151c07e0ca4e962d6383e19add706734d
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Filesize
195B
MD50ed3c32357395fc7fc4ad44c90cac09a
SHA1c72c8924eb30ca9efe3d3f41f1cc0706fdd504d7
SHA256a807e27cd7a59527ab49b4c8144712960b86c8911a34883aa3c1449b2b991d35
SHA512d31f387658ebae612d99a38220cfa3317324fef5a7a0d9071bbc2c564954837ff14384c47abd531730badcd7a1a7e625c9ef80bd187c2712abcdc3145b425b0b
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Filesize
77KB
MD59dfa580aa93694ae97b83ecb5cfa9ff5
SHA1b17c51cbd1dad8b069e2ac3adab7fccfd6bd624f
SHA256caaa953fc8d5eb5d2cbac6e280ed76c7e3ddaa2f0f4eb2ed5e7d58b7b7015ddf
SHA51222c51103d9bdf7997ccb6557c92613f431b9c643a1825d4264fd4767a0f1f8e66b8f2719ccbcda1bf5aae2c9448729212e722b6d9091a4f1c7eb6cb6bdb034fb
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Filesize
77KB
MD5fbfec32963eec74794d898179aee8b56
SHA1cc98bdf6e6fc12d7fb8ec6caf36d7b0cb35f7ca6
SHA256d15f4935437ed4422d98c2c68a1d352a781300349596adba217d9b2b94e2eca9
SHA512f846a87654034a0e00044859e354598e244d4d52c0af1bc9240b143c566919c0aa108baaeb9bf24e8c030f973b1202c417e82d72db7b0b045ba2371fdc5c1bfe