Malware Analysis Report

2024-10-19 11:58

Sample ID 240316-knfpbsfe6t
Target cd9cc2c288b39d58324c96eedda21831
SHA256 808f0c09e176834a8f3c0750677fbe9f6ec10caab55067cbec5c98dee300e151
Tags
cerberus banker collection evasion infostealer rat stealth trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

808f0c09e176834a8f3c0750677fbe9f6ec10caab55067cbec5c98dee300e151

Threat Level: Known bad

The file cd9cc2c288b39d58324c96eedda21831 was found to be: Known bad.

Malicious Activity Summary

cerberus banker collection evasion infostealer rat stealth trojan

Cerberus

Makes use of the framework's Accessibility service

Removes its main activity from the application launcher

Loads dropped Dex/Jar

Declares services with permission to bind to the system

Requests dangerous framework permissions

Requests disabling of battery optimizations (often used to enable hiding in the background).

Declares broadcast receivers with permission to handle system events

Listens for changes in the sensor environment (might be used to detect emulation)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-16 08:44

Signatures

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-16 08:44

Reported

2024-03-16 08:47

Platform

android-x86-arm-20240221-en

Max time kernel

85s

Max time network

130s

Command Line

rhythm.retreat.absorb

Signatures

Cerberus

banker trojan infostealer evasion rat cerberus

Makes use of the framework's Accessibility service

collection evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json N/A N/A
N/A /data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json N/A N/A
N/A /data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json N/A N/A

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Listens for changes in the sensor environment (might be used to detect emulation)

evasion
Description Indicator Process Target
Framework API call android.hardware.SensorManager.registerListener N/A N/A

Processes

rhythm.retreat.absorb

/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/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/oat/x86/fiyJ.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.179.234:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.200.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 googleglobal.cf udp
US 1.1.1.1:53 googleglobal.cf udp

Files

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json

MD5 692b922e76bed1995e19bf34104b91ec
SHA1 21958c394ffe5526b4c65bba0486eacff2c3f574
SHA256 1f783ba379284cb7eca50ec255b49658aaf7b2779e6fa984dcfc521aa09313be
SHA512 7e0137e6617cf72b81a5534ec7140600ec8d4e0e3fc02c38ac5e43cbaa9e83a326156e016cce86185fb21c5ff0a172d42973443cba76fc5e413f86c1b3f842ef

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json

MD5 b686443912f19ef3e525608d2b48d521
SHA1 072b1421d0d1ea64438d7767aac0cf5bd1ad6992
SHA256 06f476ea954a0adc82991daefb7554abd1a79f5fd029837c7cc600aead39f0f3
SHA512 7127acda95d486c8969cd5cf62fd6bb0b208d40d4ad35e621c2e17aeb1332ddb2b766a25c722322e818a34361f7faa7b7de0135c47cdd29f28de37f5f170d129

/data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json

MD5 567495ac2470d8509ae7d4b11a4e5f0b
SHA1 ed83a2e334836658e1e9c11b7858622d7f153c89
SHA256 7f6db41073efe885f341aedd6818231faebe72a7b8b0f399607376c99d99f0c7
SHA512 0e76fb21ad822950a9b2f1608a06a06265d524eaec94898994b725f971926ec6dd8e5b3052d36fb128991ebe4b3905c7818e02aa54d59b1e75586c10df670570

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/oat/fiyJ.json.cur.prof

MD5 db35dee8b4966cdc4610769caf89a795
SHA1 ece2e02b0bf5970a0af028dba1f2d9bca595543b
SHA256 b717125e78dfd5e26d7b67b502da99a8bbfbca92304086f67650b73c6babe921
SHA512 6b14fd25b0cfefae08bc5a340137b0e283be1e3c2cd4fad9e82f14b32c80227c40175a7a0ce13fc301d33b99219970061783cce38f086741615ddad4254a0104

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-16 08:44

Reported

2024-03-16 08:47

Platform

android-x64-20240221-en

Max time kernel

127s

Max time network

151s

Command Line

rhythm.retreat.absorb

Signatures

Cerberus

banker trojan infostealer evasion rat cerberus

Makes use of the framework's Accessibility service

collection evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json N/A N/A
N/A /data/user/0/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json N/A N/A

Listens for changes in the sensor environment (might be used to detect emulation)

evasion
Description Indicator Process Target
Framework API call android.hardware.SensorManager.registerListener N/A N/A

Processes

rhythm.retreat.absorb

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.179.232:443 ssl.google-analytics.com tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 googleglobal.cf udp
US 1.1.1.1:53 googleglobal.cf udp
US 1.1.1.1:53 googleglobal.cf udp
GB 216.58.212.228:443 tcp
GB 216.58.212.228:443 tcp
GB 216.58.201.98:443 tcp
GB 172.217.16.238:443 tcp

Files

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json

MD5 692b922e76bed1995e19bf34104b91ec
SHA1 21958c394ffe5526b4c65bba0486eacff2c3f574
SHA256 1f783ba379284cb7eca50ec255b49658aaf7b2779e6fa984dcfc521aa09313be
SHA512 7e0137e6617cf72b81a5534ec7140600ec8d4e0e3fc02c38ac5e43cbaa9e83a326156e016cce86185fb21c5ff0a172d42973443cba76fc5e413f86c1b3f842ef

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/fiyJ.json

MD5 b686443912f19ef3e525608d2b48d521
SHA1 072b1421d0d1ea64438d7767aac0cf5bd1ad6992
SHA256 06f476ea954a0adc82991daefb7554abd1a79f5fd029837c7cc600aead39f0f3
SHA512 7127acda95d486c8969cd5cf62fd6bb0b208d40d4ad35e621c2e17aeb1332ddb2b766a25c722322e818a34361f7faa7b7de0135c47cdd29f28de37f5f170d129

/data/data/rhythm.retreat.absorb/app_DynamicOptDex/oat/fiyJ.json.cur.prof

MD5 7a5efef3949b90a860258ad0fc24eca8
SHA1 243d6268e4dc2f0f9c343d67d76779fe394e23e4
SHA256 e88f74f1a253325ccec998e7e4f8d3d2b0fec803a3a3f28b4c50fc0cc4134156
SHA512 a9bac5c16879a251f5316c72646caef4aa658c9323eff14e81b61b68547d6f80631cae754c44f3623a1986ca513311732dce62240d1f1417c471b98eb2bd2375

Analysis: behavioral3

Detonation Overview

Submitted

2024-03-16 08:44

Reported

2024-03-16 08:44

Platform

android-x64-arm64-20240221-en

Max time network

6s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.74:443 udp
GB 216.58.213.14:443 udp

Files

N/A