Malware Analysis Report

2025-03-15 06:39

Sample ID 240531-d323jseg63
Target 85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118
SHA256 27743fd79ec833b2127843863c3e0f8a7c994b3a885bea6293b49c63c3e5c81e
Tags
gh0strat rat upx
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

27743fd79ec833b2127843863c3e0f8a7c994b3a885bea6293b49c63c3e5c81e

Threat Level: Known bad

The file 85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gh0strat rat upx

Gh0strat

Gh0st RAT payload

Checks computer location settings

Deletes itself

Executes dropped EXE

Loads dropped DLL

UPX packed file

Drops file in Program Files directory

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 03:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 03:32

Reported

2024-05-31 03:35

Platform

win7-20240508-en

Max time kernel

144s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe"

Signatures

Gh0st RAT payload

Description Indicator Process Target
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Gh0strat

rat gh0strat

Deletes itself

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1596 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 1596 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 1596 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 1596 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 2652 wrote to memory of 2992 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 2652 wrote to memory of 2992 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 2652 wrote to memory of 2992 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 2652 wrote to memory of 2992 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe
PID 2652 wrote to memory of 2812 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2812 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2812 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Windows\SysWOW64\WerFault.exe
PID 2652 wrote to memory of 2812 N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 344

Network

Country Destination Domain Proto
US 8.8.8.8:53 u.owwwc.com udp

Files

memory/1596-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1596-1-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1596-4-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1596-5-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1596-6-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1596-7-0x0000000010000000-0x0000000010362000-memory.dmp

\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

MD5 386c52cf34fef2b5b8886c1fb0c29db0
SHA1 40e6fda7da1ffd97eb841387d1925ebafea21201
SHA256 3a6862bd0abe49fbf862cfd4664793808d06cc826d3b7e64e2bf50372a4fc23f
SHA512 cbd586d3d73fb52edb2cef85a00fbf1cc8ded5c3897643be1046f69c50f08f8aafb9c308691ff81da3ee70a98bfbde345bbc8137bc3f14192ad0fc2b6e99fdcc

memory/1196-21-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1596-16-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1196-24-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1196-23-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1196-22-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1196-17-0x0000000010000000-0x0000000010362000-memory.dmp

memory/2652-31-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1196-33-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2992-43-0x0000000010000000-0x0000000010362000-memory.dmp

memory/2992-46-0x0000000010000000-0x0000000010362000-memory.dmp

memory/2652-49-0x0000000010000000-0x0000000010362000-memory.dmp

memory/2652-48-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2992-50-0x0000000000400000-0x000000000045E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 03:32

Reported

2024-05-31 03:35

Platform

win10v2004-20240426-en

Max time kernel

143s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe"

Signatures

Gh0st RAT payload

Description Indicator Process Target
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Gh0strat

rat gh0strat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A
File created C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1\ProcessorNameString C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\85dd025dfba86a8d33d3523d60a684c9_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

"C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3980 -ip 3980

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 608

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 u.owwwc.com udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 u.owwwc.com udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 u.owwwc.com udp
US 8.8.8.8:53 16.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 u.owwwc.com udp

Files

memory/4140-0-0x0000000000400000-0x000000000045E000-memory.dmp

memory/4140-1-0x000000000045C000-0x000000000045D000-memory.dmp

memory/4140-2-0x0000000010000000-0x0000000010362000-memory.dmp

memory/4140-6-0x0000000010000000-0x0000000010362000-memory.dmp

memory/4140-7-0x0000000000400000-0x000000000045E000-memory.dmp

memory/4140-5-0x0000000010000000-0x0000000010362000-memory.dmp

C:\Program Files (x86)\Microsoft Dxpgzk\Envmfgi.exe

MD5 386c52cf34fef2b5b8886c1fb0c29db0
SHA1 40e6fda7da1ffd97eb841387d1925ebafea21201
SHA256 3a6862bd0abe49fbf862cfd4664793808d06cc826d3b7e64e2bf50372a4fc23f
SHA512 cbd586d3d73fb52edb2cef85a00fbf1cc8ded5c3897643be1046f69c50f08f8aafb9c308691ff81da3ee70a98bfbde345bbc8137bc3f14192ad0fc2b6e99fdcc

memory/4140-22-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2668-26-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3980-30-0x0000000000400000-0x000000000045E000-memory.dmp

memory/3980-31-0x0000000010000000-0x0000000010362000-memory.dmp

memory/3980-34-0x0000000010000000-0x0000000010362000-memory.dmp

memory/3980-35-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1036-44-0x0000000000400000-0x000000000045E000-memory.dmp

memory/2668-37-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1648-46-0x0000000000400000-0x000000000045E000-memory.dmp

memory/1036-52-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1036-53-0x0000000010000000-0x0000000010362000-memory.dmp

memory/1648-55-0x0000000000400000-0x000000000045E000-memory.dmp