darkcomet | c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843

General

Target

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Size

283KB
MD5

3e2ce7ab165ab57cf04cfe8ae1583813
SHA1

1b43d9fb051b69ea883590f554b7d11495459977
SHA256

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843
SHA512

88c7c570a5969e3f6d938e9b66286b81774de42aea8ae593f5d39874536049cd6d7d1fa19439348ae53f3a4a733b6653c6846de3dc0d92996b199d538bd198c9

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

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

T1004

Modify Registry

T1112

Processes:

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.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\\Roaming\\MSDCSC\\msdcsc.exe"	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1796 msdcsc.exe

pid	process
1796	msdcsc.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe	upx
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1424 notepad.exe

pid	process
1424	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe

pid	process
1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeSecurityPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeTakeOwnershipPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeLoadDriverPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeSystemProfilePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeSystemtimePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeProfSingleProcessPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeIncBasePriorityPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeCreatePagefilePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeBackupPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeRestorePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeShutdownPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeDebugPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeSystemEnvironmentPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeChangeNotifyPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeRemoteShutdownPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeUndockPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeManageVolumePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeImpersonatePrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeCreateGlobalPrivilege	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: 33	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: 34	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: 35	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
Token: SeIncreaseQuotaPrivilege	1796	msdcsc.exe
Token: SeSecurityPrivilege	1796	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1796	msdcsc.exe
Token: SeLoadDriverPrivilege	1796	msdcsc.exe
Token: SeSystemProfilePrivilege	1796	msdcsc.exe
Token: SeSystemtimePrivilege	1796	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1796	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1796	msdcsc.exe
Token: SeCreatePagefilePrivilege	1796	msdcsc.exe
Token: SeBackupPrivilege	1796	msdcsc.exe
Token: SeRestorePrivilege	1796	msdcsc.exe
Token: SeShutdownPrivilege	1796	msdcsc.exe
Token: SeDebugPrivilege	1796	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1796	msdcsc.exe
Token: SeChangeNotifyPrivilege	1796	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1796	msdcsc.exe
Token: SeUndockPrivilege	1796	msdcsc.exe
Token: SeManageVolumePrivilege	1796	msdcsc.exe
Token: SeImpersonatePrivilege	1796	msdcsc.exe
Token: SeCreateGlobalPrivilege	1796	msdcsc.exe
Token: 33	1796	msdcsc.exe
Token: 34	1796	msdcsc.exe
Token: 35	1796	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1796 msdcsc.exe

pid	process
1796	msdcsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe

description	pid	process	target process
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1424	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	notepad.exe
PID 1100 wrote to memory of 1796	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	msdcsc.exe
PID 1100 wrote to memory of 1796	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	msdcsc.exe
PID 1100 wrote to memory of 1796	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	msdcsc.exe
PID 1100 wrote to memory of 1796	1100	c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe
"C:\Users\Admin\AppData\Local\Temp\c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1424

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1796

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
3e2ce7ab165ab57cf04cfe8ae1583813

SHA1
1b43d9fb051b69ea883590f554b7d11495459977

SHA256
c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843

SHA512
88c7c570a5969e3f6d938e9b66286b81774de42aea8ae593f5d39874536049cd6d7d1fa19439348ae53f3a4a733b6653c6846de3dc0d92996b199d538bd198c9

Download Submit
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
3e2ce7ab165ab57cf04cfe8ae1583813

SHA1
1b43d9fb051b69ea883590f554b7d11495459977

SHA256
c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843

SHA512
88c7c570a5969e3f6d938e9b66286b81774de42aea8ae593f5d39874536049cd6d7d1fa19439348ae53f3a4a733b6653c6846de3dc0d92996b199d538bd198c9

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
3e2ce7ab165ab57cf04cfe8ae1583813

SHA1
1b43d9fb051b69ea883590f554b7d11495459977

SHA256
c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843

SHA512
88c7c570a5969e3f6d938e9b66286b81774de42aea8ae593f5d39874536049cd6d7d1fa19439348ae53f3a4a733b6653c6846de3dc0d92996b199d538bd198c9

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
3e2ce7ab165ab57cf04cfe8ae1583813

SHA1
1b43d9fb051b69ea883590f554b7d11495459977

SHA256
c71d85fa9976fc49b3bd3eceb8aeaade3167a9a61a12cd0efee58218189e4843

SHA512
88c7c570a5969e3f6d938e9b66286b81774de42aea8ae593f5d39874536049cd6d7d1fa19439348ae53f3a4a733b6653c6846de3dc0d92996b199d538bd198c9

Download Submit
memory/1100-60-0x00000000757D1000-0x00000000757D3000-memory.dmp

Filesize
8KB

Download
memory/1100-69-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1424-61-0x0000000000000000-mapping.dmp

Download
memory/1424-70-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1796-65-0x0000000000000000-mapping.dmp

Download
memory/1796-71-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads