Malware Analysis Report

2024-07-28 14:47

Sample ID 240617-d5v21swgnl
Target b6908d5b96a81b180e4b608f7025bb3e_JaffaCakes118
SHA256 0546af2e35fcda21cd2db1a785d5b9356fd45ebad06e5a49d3d1a478f1fe3c4a
Tags
banker collection discovery evasion impact privilege_escalation stealth trojan
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
8/10

SHA256

0546af2e35fcda21cd2db1a785d5b9356fd45ebad06e5a49d3d1a478f1fe3c4a

Threat Level: Likely malicious

The file b6908d5b96a81b180e4b608f7025bb3e_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

banker collection discovery evasion impact privilege_escalation stealth trojan

Removes its main activity from the application launcher

Loads dropped Dex/Jar

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Queries information about running processes on the device

Reads the content of SMS inbox messages.

Reads the contacts stored on the device.

Declares broadcast receivers with permission to handle system events

Reads information about phone network operator.

Tries to add a device administrator.

Requests dangerous framework permissions

Acquires the wake lock

Queries the unique device ID (IMEI, MEID, IMSI)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-17 03:36

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

Requests dangerous framework permissions

Description Indicator Process Target
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
Allows an application to receive SMS messages. android.permission.RECEIVE_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 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: behavioral1

Detonation Overview

Submitted

2024-06-17 03:35

Reported

2024-06-17 03:39

Platform

android-x86-arm-20240611.1-en

Max time kernel

179s

Max time network

170s

Command Line

com.cwapng.bybhktk

Signatures

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/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar N/A N/A
N/A /data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Reads the contacts stored on the device.

collection
Description Indicator Process Target
URI accessed for read content://com.android.contacts/contacts N/A N/A

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Acquires the wake lock

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

Reads information about phone network operator.

discovery

Tries to add a device administrator.

privilege_escalation impact
Description Indicator Process Target
Intent action android.app.action.ADD_DEVICE_ADMIN N/A N/A

Processes

com.cwapng.bybhktk

/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.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/oat/x86/lcaurg.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
GB 142.250.178.10:443 tcp
N/A 224.0.0.251:5353 udp
DE 85.93.5.109:80 tcp
GB 216.58.212.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
DE 85.93.5.109:80 tcp

Files

/data/data/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 01eb30f67424c22ea90511e2ff886305
SHA1 0fa72a5717c383ea483aa12b2e7e6c945caec005
SHA256 3ba8ece2e14931c18066f2ea23b0dbdae9cef026f051694ceb7514546a86b25b
SHA512 1a2b502ff8b5f942ab15d257a28aadbbe28d87e2990a4a3123d3c894abfd62f2d1d783f911aa34f63284a5d314c3b3ae57c5fc1bd5ca176f370c05cb5094908e

/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 f46d43764d4d0f1d0427bf2e73e94ca2
SHA1 fe0b3140138c4f53a98d87318849b6000feb87d4
SHA256 f9ee47ca5718fa7060db95b9ca57d1f43e3735a6e23c2989558459e7ca55666e
SHA512 cf21d4a0068d9ee8ae9cbdcd8f740f834b7e3676edd4a021716f756b2c6218a669503a182d6e178140e6c76af5b3a97f44af472ee699400f11d0f28f85422b38

/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 8d4c6a02017310a35986f187d6eaf537
SHA1 3bf11eff7f43481952b25620f1bfca15b839fc7b
SHA256 32bd20c313096087bb7628e9a6adc6da4c939e188674618a434ab83ac5f28be9
SHA512 a0bfdf9bac2c1eee1707746a069824c47d2808d5834c7661e119920c14ab8b41048749168bb39689e217082a0468ee82bfd650e409baa762e57307a132923273

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 03:35

Reported

2024-06-17 03:39

Platform

android-x64-20240611.1-en

Max time kernel

179s

Max time network

177s

Command Line

com.cwapng.bybhktk

Signatures

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/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Reads the contacts stored on the device.

collection
Description Indicator Process Target
URI accessed for read content://com.android.contacts/contacts N/A N/A

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Acquires the wake lock

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

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Reads information about phone network operator.

discovery

Processes

com.cwapng.bybhktk

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
DE 85.93.5.109:80 tcp
GB 142.250.179.234:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.187.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
GB 142.250.200.14:443 tcp
GB 172.217.169.66:443 tcp
GB 216.58.204.78:443 tcp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp
DE 85.93.5.109:80 tcp

Files

/data/data/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 01eb30f67424c22ea90511e2ff886305
SHA1 0fa72a5717c383ea483aa12b2e7e6c945caec005
SHA256 3ba8ece2e14931c18066f2ea23b0dbdae9cef026f051694ceb7514546a86b25b
SHA512 1a2b502ff8b5f942ab15d257a28aadbbe28d87e2990a4a3123d3c894abfd62f2d1d783f911aa34f63284a5d314c3b3ae57c5fc1bd5ca176f370c05cb5094908e

/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 f46d43764d4d0f1d0427bf2e73e94ca2
SHA1 fe0b3140138c4f53a98d87318849b6000feb87d4
SHA256 f9ee47ca5718fa7060db95b9ca57d1f43e3735a6e23c2989558459e7ca55666e
SHA512 cf21d4a0068d9ee8ae9cbdcd8f740f834b7e3676edd4a021716f756b2c6218a669503a182d6e178140e6c76af5b3a97f44af472ee699400f11d0f28f85422b38

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-17 03:35

Reported

2024-06-17 03:39

Platform

android-x64-arm64-20240611.1-en

Max time kernel

179s

Max time network

176s

Command Line

com.cwapng.bybhktk

Signatures

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/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Reads the contacts stored on the device.

collection
Description Indicator Process Target
URI accessed for read content://com.android.contacts/contacts N/A N/A

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Acquires the wake lock

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

Tries to add a device administrator.

privilege_escalation impact
Description Indicator Process Target
Intent action android.app.action.ADD_DEVICE_ADMIN N/A N/A

Processes

com.cwapng.bybhktk

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
DE 85.93.5.109:80 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.180.8:443 ssl.google-analytics.com tcp
GB 142.250.187.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.179.238:443 android.apis.google.com tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
DE 85.93.5.109:80 tcp

Files

/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 01eb30f67424c22ea90511e2ff886305
SHA1 0fa72a5717c383ea483aa12b2e7e6c945caec005
SHA256 3ba8ece2e14931c18066f2ea23b0dbdae9cef026f051694ceb7514546a86b25b
SHA512 1a2b502ff8b5f942ab15d257a28aadbbe28d87e2990a4a3123d3c894abfd62f2d1d783f911aa34f63284a5d314c3b3ae57c5fc1bd5ca176f370c05cb5094908e

/data/user/0/com.cwapng.bybhktk/app_tnlztdjae/lcaurg.jar

MD5 f46d43764d4d0f1d0427bf2e73e94ca2
SHA1 fe0b3140138c4f53a98d87318849b6000feb87d4
SHA256 f9ee47ca5718fa7060db95b9ca57d1f43e3735a6e23c2989558459e7ca55666e
SHA512 cf21d4a0068d9ee8ae9cbdcd8f740f834b7e3676edd4a021716f756b2c6218a669503a182d6e178140e6c76af5b3a97f44af472ee699400f11d0f28f85422b38