darkcomet | 9fb02ece86b6cde7ecf2579a209fe20ffdb74d4ad35cd23acbea82b5bd17b439

General

Target

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Size

302KB
MD5

1f3587ecd974baf1f9f8a26a1e6aa557
SHA1

19c60397a27a340d2fc0a5928ed19c680ccb23ed
SHA256

9fb02ece86b6cde7ecf2579a209fe20ffdb74d4ad35cd23acbea82b5bd17b439
SHA512

233af91910c13397101744bca33c53bb08d0545619d3f759a695caf6a3d31dcd2bfc10a2667e51dd8b014e827318e336dce40962d23760363cf82f0d495605c8
SSDEEP

6144:tyuLJOUX8rGYm9rnVduPvxZnHMMFYmOCN0XocbUgyhnvCS9o:tJQmlVduPvx3c8SYhvCd

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-F2XPX1H

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
2WrLoVgVtQNk
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

3052 msdcsc.exe
2652 msdcsc.exe
Loads dropped DLL 3 IoCs

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exemsdcsc.exe

pid process

2172 1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
2172 1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
3052 msdcsc.exe

pid	process
3052	msdcsc.exe
2652	msdcsc.exe

pid	process
2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
3052	msdcsc.exe

UPX packed file 26 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2172-10-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-11-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-12-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-6-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-4-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-13-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-14-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-17-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2172-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-43-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-47-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-49-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-48-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-46-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-45-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-50-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-52-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-51-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-53-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-54-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-55-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-56-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-65-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral1/memory/2652-66-0x0000000000400000-0x00000000004BA000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 2412 set thread context of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 3052 set thread context of 2652	3052	msdcsc.exe	msdcsc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeSecurityPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeBackupPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeRestorePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeShutdownPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeDebugPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeUndockPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: 33	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: 34	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: 35	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2652	msdcsc.exe
Token: SeSecurityPrivilege	2652	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2652	msdcsc.exe
Token: SeLoadDriverPrivilege	2652	msdcsc.exe
Token: SeSystemProfilePrivilege	2652	msdcsc.exe
Token: SeSystemtimePrivilege	2652	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2652	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2652	msdcsc.exe
Token: SeCreatePagefilePrivilege	2652	msdcsc.exe
Token: SeBackupPrivilege	2652	msdcsc.exe
Token: SeRestorePrivilege	2652	msdcsc.exe
Token: SeShutdownPrivilege	2652	msdcsc.exe
Token: SeDebugPrivilege	2652	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2652	msdcsc.exe
Token: SeChangeNotifyPrivilege	2652	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2652	msdcsc.exe
Token: SeUndockPrivilege	2652	msdcsc.exe
Token: SeManageVolumePrivilege	2652	msdcsc.exe
Token: SeImpersonatePrivilege	2652	msdcsc.exe
Token: SeCreateGlobalPrivilege	2652	msdcsc.exe
Token: 33	2652	msdcsc.exe
Token: 34	2652	msdcsc.exe
Token: 35	2652	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exemsdcsc.exemsdcsc.exe

pid process

2412 1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
3052 msdcsc.exe
2652 msdcsc.exe

pid	process
2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
3052	msdcsc.exe
2652	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2412 wrote to memory of 2172	2412	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
PID 2172 wrote to memory of 3052	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	msdcsc.exe
PID 2172 wrote to memory of 3052	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	msdcsc.exe
PID 2172 wrote to memory of 3052	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	msdcsc.exe
PID 2172 wrote to memory of 3052	2172	1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe
PID 3052 wrote to memory of 2652	3052	msdcsc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2412

C:\Users\Admin\AppData\Local\Temp\1f3587ecd974baf1f9f8a26a1e6aa557_JaffaCakes118.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3052

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2652

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
302KB

MD5
1f3587ecd974baf1f9f8a26a1e6aa557

SHA1
19c60397a27a340d2fc0a5928ed19c680ccb23ed

SHA256
9fb02ece86b6cde7ecf2579a209fe20ffdb74d4ad35cd23acbea82b5bd17b439

SHA512
233af91910c13397101744bca33c53bb08d0545619d3f759a695caf6a3d31dcd2bfc10a2667e51dd8b014e827318e336dce40962d23760363cf82f0d495605c8

Download Submit
memory/2172-2-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-6-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-4-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-14-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-11-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2172-30-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-43-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-47-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-49-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-48-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-46-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-45-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-50-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-52-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-51-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-53-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-55-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-56-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-65-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2652-66-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads