Malware Analysis Report

2025-01-19 05:49

Sample ID 241204-rp4k4sxrbs
Target 008db830f8edcbe87ef15195781ebdd0.apk
SHA256 9bfef457ff38d9e658b63586075fa3b6db5478b9309b2d0d9bda8c0b9ca7db5f
Tags
tanglebot collection credential_access evasion infostealer spyware trojan persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9bfef457ff38d9e658b63586075fa3b6db5478b9309b2d0d9bda8c0b9ca7db5f

Threat Level: Known bad

The file 008db830f8edcbe87ef15195781ebdd0.apk was found to be: Known bad.

Malicious Activity Summary

tanglebot collection credential_access evasion infostealer spyware trojan persistence

TangleBot payload

Tanglebot family

TangleBot

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

Requests dangerous framework permissions

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Requests enabling of the accessibility settings.

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

Performs UI accessibility actions on behalf of the user

Acquires the wake lock

Registers a broadcast receiver at runtime (usually for listening for system events)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-04 14:23

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
Required by notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Required to be able to access the camera device. android.permission.CAMERA 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 send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS 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
Allows an application to collect component usage statistics. android.permission.PACKAGE_USAGE_STATS N/A N/A
Allows an app to access location in the background. android.permission.ACCESS_BACKGROUND_LOCATION N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO N/A N/A
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 read SMS messages. android.permission.READ_SMS N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows the app to answer an incoming phone call. android.permission.ANSWER_PHONE_CALLS N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-12-04 14:23

Reported

2024-12-04 14:25

Platform

android-x64-arm64-20240624-en

Max time kernel

133s

Max time network

142s

Command Line

com.ltjkqj.erfycvar

Signatures

TangleBot

trojan infostealer spyware tanglebot

TangleBot payload

Description Indicator Process Target
N/A N/A N/A N/A

Tanglebot family

tanglebot

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
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
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock 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

Requests enabling of the accessibility settings.

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

Processes

com.ltjkqj.erfycvar

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.16.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.169.46:443 android.apis.google.com tcp
GB 172.217.169.46:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.201.104:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 t.me udp
NL 149.154.167.99:443 t.me tcp
GB 142.250.187.196:443 tcp
GB 142.250.187.196:443 tcp
NL 149.154.167.99:443 t.me tcp

Files

/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/tmp-base.apk.classes5663725433535848391.zip

MD5 0e83370014f555fd02f2b5469b26bc93
SHA1 e328f134c9124b4d3618f7d5636e045a163fd868
SHA256 1f231f7732ab1128d69c199f49abef9a5157466e48239e366c178c28e735870e
SHA512 0168b4e4d6fef6572c33672980e14f5d6d8617cc93a2d33beeb7e28933ca2739c14cbce500ecc31145caab433c64b65c705b17b17f8a220a5ffaf0108b9fc587

/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 897cf21f2a12df450ecf6294fbb3653d
SHA1 aebc6b845facc4aa1ecfae91ba81ccbf5a31ff2c
SHA256 d803c898445814582805089f296e338fa23bab4415d6e6175d495f131a5101e4
SHA512 bc6f9c53229ad3c90c70ec843e420df3ef2aa15aa9eae54e1c1d1b7e05fad6fce9a6e3ece2a9d06f1e1dc1a7307c121e1c9a9d34c7c3d6c2ba968e1d0d453bc9

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-04 14:23

Reported

2024-12-04 14:25

Platform

android-x86-arm-20240624-en

Max time kernel

145s

Max time network

142s

Command Line

com.ltjkqj.erfycvar

Signatures

TangleBot

trojan infostealer spyware tanglebot

TangleBot payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Tanglebot family

tanglebot

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A
N/A /data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
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
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock 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

Requests enabling of the accessibility settings.

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

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Processes

com.ltjkqj.erfycvar

/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.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/oat/x86/base.apk.classes1.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.202:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 t.me udp
NL 149.154.167.99:443 t.me tcp
GB 142.250.200.46:443 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 t.me udp
NL 149.154.167.99:443 t.me tcp
NL 149.154.167.99:443 t.me tcp

Files

/data/data/com.ltjkqj.erfycvar/code_cache/secondary-dexes/tmp-base.apk.classes4710242196602311504.zip

MD5 0e83370014f555fd02f2b5469b26bc93
SHA1 e328f134c9124b4d3618f7d5636e045a163fd868
SHA256 1f231f7732ab1128d69c199f49abef9a5157466e48239e366c178c28e735870e
SHA512 0168b4e4d6fef6572c33672980e14f5d6d8617cc93a2d33beeb7e28933ca2739c14cbce500ecc31145caab433c64b65c705b17b17f8a220a5ffaf0108b9fc587

/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 897cf21f2a12df450ecf6294fbb3653d
SHA1 aebc6b845facc4aa1ecfae91ba81ccbf5a31ff2c
SHA256 d803c898445814582805089f296e338fa23bab4415d6e6175d495f131a5101e4
SHA512 bc6f9c53229ad3c90c70ec843e420df3ef2aa15aa9eae54e1c1d1b7e05fad6fce9a6e3ece2a9d06f1e1dc1a7307c121e1c9a9d34c7c3d6c2ba968e1d0d453bc9

/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 dd56df1015c97ea7370a1477ed6917d3
SHA1 a5a5d5d640f9b305d33695222aea310899a2ba31
SHA256 78c8396f2ee00d95f5f47af3f883b1c0498bd7beae65822fbdaaa64db6dd170a
SHA512 9dca8fc449a242fd2b5c61149f31a0bfe3bee985191419c35088b62805522959908a5b2910c325d400da4ae32a7df0268e7b0f7cbd5dfab6070c62d60856540c

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-04 14:23

Reported

2024-12-04 14:25

Platform

android-x64-20240624-en

Max time kernel

144s

Max time network

143s

Command Line

com.ltjkqj.erfycvar

Signatures

TangleBot

trojan infostealer spyware tanglebot

TangleBot payload

Description Indicator Process Target
N/A N/A N/A N/A

Tanglebot family

tanglebot

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip N/A N/A

Makes use of the framework's Accessibility service

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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Performs UI accessibility actions on behalf of the user

evasion
Description Indicator Process Target
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Processes

com.ltjkqj.erfycvar

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 142.250.180.8:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 216.58.212.202:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.179.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.238:443 android.apis.google.com tcp
GB 172.217.169.46:443 tcp
GB 172.217.169.46:443 tcp
GB 142.250.179.234:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.180.4:443 tcp
GB 142.250.180.4:443 tcp
NL 149.154.167.99:443 t.me tcp

Files

/data/data/com.ltjkqj.erfycvar/code_cache/secondary-dexes/tmp-base.apk.classes5277044189033070590.zip

MD5 0e83370014f555fd02f2b5469b26bc93
SHA1 e328f134c9124b4d3618f7d5636e045a163fd868
SHA256 1f231f7732ab1128d69c199f49abef9a5157466e48239e366c178c28e735870e
SHA512 0168b4e4d6fef6572c33672980e14f5d6d8617cc93a2d33beeb7e28933ca2739c14cbce500ecc31145caab433c64b65c705b17b17f8a220a5ffaf0108b9fc587

/data/user/0/com.ltjkqj.erfycvar/code_cache/secondary-dexes/base.apk.classes1.zip

MD5 897cf21f2a12df450ecf6294fbb3653d
SHA1 aebc6b845facc4aa1ecfae91ba81ccbf5a31ff2c
SHA256 d803c898445814582805089f296e338fa23bab4415d6e6175d495f131a5101e4
SHA512 bc6f9c53229ad3c90c70ec843e420df3ef2aa15aa9eae54e1c1d1b7e05fad6fce9a6e3ece2a9d06f1e1dc1a7307c121e1c9a9d34c7c3d6c2ba968e1d0d453bc9