Malware Analysis Report

2024-10-23 20:33

Sample ID 240627-zbnxha1hlj
Target 176ce8ced727581cc9f115c5aa55edea_JaffaCakes118
SHA256 58d1d43c864ff4a3926e02151ec48a9038586394ad3e3bb9193dc26e35718487
Tags
s3rv3r-2 darkcomet persistence rat trojan
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

58d1d43c864ff4a3926e02151ec48a9038586394ad3e3bb9193dc26e35718487

Threat Level: Known bad

The file 176ce8ced727581cc9f115c5aa55edea_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

s3rv3r-2 darkcomet persistence rat trojan

Darkcomet

Modifies WinLogon for persistence

Darkcomet family

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 20:32

Signatures

Darkcomet family

darkcomet

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 20:32

Reported

2024-06-27 20:35

Platform

win7-20240611-en

Max time kernel

150s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Users\\Admin\\Documents\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 33 N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 34 N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 35 N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe"

C:\Users\Admin\Documents\WinDefender.exe

"C:\Users\Admin\Documents\WinDefender.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp

Files

memory/1248-0-0x00000000002B0000-0x00000000002B1000-memory.dmp

\Users\Admin\Documents\WinDefender.exe

MD5 176ce8ced727581cc9f115c5aa55edea
SHA1 5f927c97f132d52defe29a7b8c54603187570d1c
SHA256 58d1d43c864ff4a3926e02151ec48a9038586394ad3e3bb9193dc26e35718487
SHA512 e0b3901ae184dfda7ebfa8903d2daa3076d96310d28407adfd2c8932b9c872e6e486c12daefe1e1d5568437d54198bcf13c8b7dd650d156c99cd1cc7547cc96b

memory/1248-10-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-11-0x0000000000260000-0x0000000000261000-memory.dmp

memory/1492-12-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-13-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-14-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-15-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-16-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-17-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-18-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-19-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-20-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-21-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-22-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-23-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-24-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1492-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 20:32

Reported

2024-06-27 20:35

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Users\\Admin\\Documents\\WinDefender.exe" C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: 36 N/A C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 33 N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 34 N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 35 N/A C:\Users\Admin\Documents\WinDefender.exe N/A
Token: 36 N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\Documents\WinDefender.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\176ce8ced727581cc9f115c5aa55edea_JaffaCakes118.exe"

C:\Users\Admin\Documents\WinDefender.exe

"C:\Users\Admin\Documents\WinDefender.exe"

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 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp
US 8.8.8.8:53 tengxunsafeupdate.servecounterstrike.com udp

Files

memory/1884-0-0x00000000021F0000-0x00000000021F1000-memory.dmp

C:\Users\Admin\Documents\WinDefender.exe

MD5 176ce8ced727581cc9f115c5aa55edea
SHA1 5f927c97f132d52defe29a7b8c54603187570d1c
SHA256 58d1d43c864ff4a3926e02151ec48a9038586394ad3e3bb9193dc26e35718487
SHA512 e0b3901ae184dfda7ebfa8903d2daa3076d96310d28407adfd2c8932b9c872e6e486c12daefe1e1d5568437d54198bcf13c8b7dd650d156c99cd1cc7547cc96b

memory/1884-12-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-13-0x0000000002270000-0x0000000002271000-memory.dmp

memory/852-14-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-15-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-16-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-17-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-18-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-19-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-20-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-21-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-22-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-23-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-24-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-25-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-26-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/852-27-0x0000000000400000-0x00000000004B0000-memory.dmp