Analysis
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max time kernel
87s -
max time network
131s -
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
04-01-2025 22:06
Static task
static1
Behavioral task
behavioral1
Sample
99636071a041eb47ddf2643f7679aa15dca390bf6a74576c009b291fed89e93c.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
99636071a041eb47ddf2643f7679aa15dca390bf6a74576c009b291fed89e93c.apk
Resource
android-x64-20240910-en
Behavioral task
behavioral3
Sample
99636071a041eb47ddf2643f7679aa15dca390bf6a74576c009b291fed89e93c.apk
Resource
android-x64-arm64-20240624-en
General
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Target
99636071a041eb47ddf2643f7679aa15dca390bf6a74576c009b291fed89e93c.apk
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Size
1.5MB
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MD5
bec12b71796dc3ad130c410f58f5d299
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SHA1
2edd55a52c512ca686fac7d82747be9c4469167c
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SHA256
99636071a041eb47ddf2643f7679aa15dca390bf6a74576c009b291fed89e93c
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SHA512
16ae0278fd1158ddcec46b49b3630689a46bddc010963abbc36cb4609cbfee1a58c77731e1fb6f7992c19b3ab5b6187d1c8ebf885b67f05ee4847b905d87bd55
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SSDEEP
49152:vsVXZMN6ZOilFsDbVN9uFPZIlfLVsem5WhLfsZu:vaXicImuH9KulfLuems2U
Malware Config
Extracted
cerberus
http://94.250.253.26
Signatures
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Cerberus family
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pid Process 4318 com.bicycle.tortoise 4318 com.bicycle.tortoise -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.bicycle.tortoise/app_DynamicOptDex/nB.json 4343 /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.bicycle.tortoise/app_DynamicOptDex/nB.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.bicycle.tortoise/app_DynamicOptDex/oat/x86/nB.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.bicycle.tortoise/app_DynamicOptDex/nB.json 4318 com.bicycle.tortoise -
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.findAccessibilityNodeInfosByViewId com.bicycle.tortoise Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.bicycle.tortoise Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.bicycle.tortoise -
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.bicycle.tortoise android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.bicycle.tortoise android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.bicycle.tortoise android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.bicycle.tortoise -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.bicycle.tortoise -
Requests changing the default SMS application. 2 TTPs 1 IoCs
description ioc Process Intent action android.provider.Telephony.ACTION_CHANGE_DEFAULT com.bicycle.tortoise -
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.bicycle.tortoise -
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.bicycle.tortoise -
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.bicycle.tortoise -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.bicycle.tortoise -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.bicycle.tortoise
Processes
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com.bicycle.tortoise1⤵
- 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:4318 -
/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.bicycle.tortoise/app_DynamicOptDex/nB.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.bicycle.tortoise/app_DynamicOptDex/oat/x86/nB.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4343
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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
-
Filesize
35KB
MD53369fdcbb816556d2fa130f250679ccc
SHA1f7a7f2b44943e0fb01b0a74d04bb2ad982d1dd09
SHA256c315364707f42db525a38f93843644a4b66d762520a0e6710a2acb02214f17f7
SHA512ecb09df174dafed1d72e2c200d09b7feb36eea1d57a8364c277858f859c6ceb43b1ef2f0b8897445efc73b06a69703c95c1d24333ba8393630a94f24043b92cc
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Filesize
35KB
MD5fa21280f4f07e6a5412fd674d5fae8d7
SHA1d2104a59c8acb97fbc36afdea57b75820a0fc8da
SHA25604fd70e578d8028854021b7bee1051ace236ec353c47a786a7f57d9e9597d0df
SHA512401784a1b6b1f225b666c9471ea90b819e51cc3c5246b9e06b5d8e8303cc2a56be15a4da046d94adeb822ab88a6df87731597b40093fa15db1b4436c28746346
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Filesize
237B
MD508a196a4e2911bf5de082980dec8aead
SHA19819a986a6153626de516d0b747ac998cb765695
SHA256f3e1772822201bb62136196ee88676cb123256f5a5474132d4bfcbc3dd74a182
SHA5124f26d5eb4d3131e966776000d263b15da36fb5812bee9606cbeb547bc25d64956ab65f80a67a528c9113cf7a48f9c123eaadbf631e4eaef527f409c1aa10323c
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Filesize
77KB
MD59dfa580aa93694ae97b83ecb5cfa9ff5
SHA1b17c51cbd1dad8b069e2ac3adab7fccfd6bd624f
SHA256caaa953fc8d5eb5d2cbac6e280ed76c7e3ddaa2f0f4eb2ed5e7d58b7b7015ddf
SHA51222c51103d9bdf7997ccb6557c92613f431b9c643a1825d4264fd4767a0f1f8e66b8f2719ccbcda1bf5aae2c9448729212e722b6d9091a4f1c7eb6cb6bdb034fb
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Filesize
77KB
MD5fbfec32963eec74794d898179aee8b56
SHA1cc98bdf6e6fc12d7fb8ec6caf36d7b0cb35f7ca6
SHA256d15f4935437ed4422d98c2c68a1d352a781300349596adba217d9b2b94e2eca9
SHA512f846a87654034a0e00044859e354598e244d4d52c0af1bc9240b143c566919c0aa108baaeb9bf24e8c030f973b1202c417e82d72db7b0b045ba2371fdc5c1bfe