Malware Analysis Report

2024-10-19 07:55

Sample ID 240626-zve4pswerl
Target 1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118
SHA256 1f96a1ece5b29ad2d08a0e9e7a306296e73545a09db0de6337843bbab7084f8e
Tags
darkcomet testing123 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

1f96a1ece5b29ad2d08a0e9e7a306296e73545a09db0de6337843bbab7084f8e

Threat Level: Known bad

The file 1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkcomet testing123 persistence rat trojan

Darkcomet

Drops startup file

Adds Run key to start application

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-26 21:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 21:02

Reported

2024-06-26 21:04

Platform

win7-20240221-en

Max time kernel

150s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\ Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp11DC.tmp.exe" C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2732 set thread context of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: 34 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: 35 N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 2732 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\System32\rundll32.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 administrator.redirectme.net udp

Files

memory/2732-0-0x00000000744E1000-0x00000000744E2000-memory.dmp

memory/2732-1-0x00000000744E0000-0x0000000074A8B000-memory.dmp

memory/2732-2-0x00000000744E0000-0x0000000074A8B000-memory.dmp

memory/2896-5-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-11-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2896-8-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-7-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-6-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-13-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-15-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2732-16-0x00000000744E0000-0x0000000074A8B000-memory.dmp

memory/2896-17-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-19-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-18-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-20-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-21-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2896-22-0x0000000000400000-0x00000000004B8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 21:02

Reported

2024-06-26 21:04

Platform

win10v2004-20240508-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp3D67.tmp.exe" C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 828 set thread context of 2012 N/A C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1370a3aa17c0e03bf6c1a0dddcf74c50_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\System32\rundll32.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2012 -ip 2012

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2012 -s 80

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/828-0-0x00000000752D2000-0x00000000752D3000-memory.dmp

memory/828-1-0x00000000752D0000-0x0000000075881000-memory.dmp

memory/828-2-0x00000000752D0000-0x0000000075881000-memory.dmp

memory/828-6-0x00000000752D0000-0x0000000075881000-memory.dmp