Malware Analysis Report

2025-01-02 06:44

Sample ID 241202-kvze1syjcz
Target b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118
SHA256 fa83eba7e3b3197c422823db67eb3ce509293eda358b29536cec627aa424865c
Tags
gcleaner onlylogger discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise 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 Overview

score
10/10

SHA256

fa83eba7e3b3197c422823db67eb3ce509293eda358b29536cec627aa424865c

Threat Level: Known bad

The file b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gcleaner onlylogger discovery loader

Gcleaner family

GCleaner

Onlylogger family

OnlyLogger

OnlyLogger payload

Checks computer location settings

Deletes itself

Program crash

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Kills process with taskkill

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-02 08:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-02 08:55

Reported

2024-12-02 08:58

Platform

win7-20241010-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe"

Signatures

GCleaner

loader gcleaner

Gcleaner family

gcleaner

OnlyLogger

loader onlylogger

Onlylogger family

onlylogger

OnlyLogger payload

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

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f

Network

N/A

Files

memory/2032-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

memory/2032-2-0x0000000000250000-0x0000000000298000-memory.dmp

memory/2032-3-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2032-6-0x0000000000400000-0x000000000044B000-memory.dmp

memory/2032-4-0x0000000000400000-0x0000000000885000-memory.dmp

memory/2032-5-0x0000000000250000-0x0000000000298000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-02 08:55

Reported

2024-12-02 08:58

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe"

Signatures

GCleaner

loader gcleaner

Gcleaner family

gcleaner

OnlyLogger

loader onlylogger

Onlylogger family

onlylogger

OnlyLogger payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 736

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 784

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 792

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 780 -ip 780

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 976

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/780-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

memory/780-2-0x0000000000E60000-0x0000000000EA8000-memory.dmp

memory/780-3-0x0000000000400000-0x000000000044B000-memory.dmp

memory/780-6-0x0000000000400000-0x000000000044B000-memory.dmp

memory/780-5-0x0000000000E60000-0x0000000000EA8000-memory.dmp

memory/780-4-0x0000000000400000-0x0000000000885000-memory.dmp