Malware Analysis Report

2024-10-23 20:34

Sample ID 240628-cav8vsvdkb
Target 185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118
SHA256 047b9549cc08b8749c2157d940bdfb737ea20a2bbf80089715f837b7041bea6d
Tags
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

047b9549cc08b8749c2157d940bdfb737ea20a2bbf80089715f837b7041bea6d

Threat Level: Known bad

The file 185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkcomet persistence rat trojan

Darkcomet

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 01:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 01:52

Reported

2024-06-28 01:55

Platform

win7-20240419-en

Max time kernel

150s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinUdapter.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinZip = "C:\\Users\\Admin\\AppData\\Roaming\\leftoverdccrypt.exe" C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1576 set thread context of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinUdapter.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 1576 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe"

C:\Users\Admin\AppData\Roaming\WinUdapter.exe

C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 wiked.no-ip.org udp

Files

memory/1576-0-0x0000000074991000-0x0000000074992000-memory.dmp

memory/1576-1-0x0000000074990000-0x0000000074F3B000-memory.dmp

memory/1576-2-0x0000000074990000-0x0000000074F3B000-memory.dmp

\Users\Admin\AppData\Roaming\WinUdapter.exe

MD5 7c32886c3cd06d6036c0462301ad289c
SHA1 a0a54552a7ecf7082bac0af6c5bca610225b05df
SHA256 72c341969754f9e11b85119ca8db22eba2f4a6173c6bac14a032360073799009
SHA512 08613b8dc53125c6ff051a98989eb9c4eb447ad05243db1b956ae2969e8463c2a216ed6873274d5b3e890307ad219d761324aa702b3ee45f776b80336147d523

memory/2564-11-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-13-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/1576-14-0x0000000074990000-0x0000000074F3B000-memory.dmp

memory/2564-15-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-16-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-17-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-19-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-20-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-18-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-21-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/2564-25-0x0000000000400000-0x00000000004C3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 01:52

Reported

2024-06-28 01:55

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinUdapter.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinZip = "C:\\Users\\Admin\\AppData\\Roaming\\leftoverdccrypt.exe" C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4516 set thread context of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinUdapter.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe
PID 4516 wrote to memory of 3576 N/A C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\185cc9f3e3beacd8b0acb680fc70e8a4_JaffaCakes118.exe"

C:\Users\Admin\AppData\Roaming\WinUdapter.exe

C:\Users\Admin\AppData\Roaming\WinUdapter.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 wiked.no-ip.org udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 20.189.173.13:443 tcp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/4516-0-0x0000000074932000-0x0000000074933000-memory.dmp

memory/4516-1-0x0000000074930000-0x0000000074EE1000-memory.dmp

memory/4516-2-0x0000000074930000-0x0000000074EE1000-memory.dmp

memory/3576-6-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-9-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-11-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-13-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/4516-14-0x0000000074930000-0x0000000074EE1000-memory.dmp

C:\Users\Admin\AppData\Roaming\WinUdapter.exe

MD5 7c32886c3cd06d6036c0462301ad289c
SHA1 a0a54552a7ecf7082bac0af6c5bca610225b05df
SHA256 72c341969754f9e11b85119ca8db22eba2f4a6173c6bac14a032360073799009
SHA512 08613b8dc53125c6ff051a98989eb9c4eb447ad05243db1b956ae2969e8463c2a216ed6873274d5b3e890307ad219d761324aa702b3ee45f776b80336147d523

memory/3576-18-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-17-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-16-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-15-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/3576-19-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-20-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-21-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-22-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-23-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-24-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-25-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-26-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-27-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-28-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-29-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-31-0x0000000000400000-0x00000000004C3000-memory.dmp

memory/3576-32-0x0000000000400000-0x00000000004C3000-memory.dmp