darkcomet | 113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d

General

Target

9b89fb51be345ff9564807566ff45444.exe
Size

252KB
MD5

1ae87b63858a496bd9473e57fb4d8f31
SHA1

30593034cc80261649a334cde198d6c2dc3a866c
SHA256

113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d
SHA512

d02eb94c60c5361138942a2af0758c8b97e72fa898f31fbb75f4055cfb2eac6a5549407b57155b8c3ee2250b64e1849f662620f2a9d69a0da6057ca440bbe37c

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:

9b89fb51be345ff9564807566ff45444.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9b89fb51be345ff9564807566ff45444.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1972 msdcsc.exe

pid	process
1972	msdcsc.exe

UPX packed file 4 IoCs

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

upx

Processes:

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

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2012 notepad.exe
Loads dropped DLL 2 IoCs

Processes:

9b89fb51be345ff9564807566ff45444.exe

pid process

292 9b89fb51be345ff9564807566ff45444.exe
292 9b89fb51be345ff9564807566ff45444.exe

pid	process
2012	notepad.exe

pid	process
292	9b89fb51be345ff9564807566ff45444.exe
292	9b89fb51be345ff9564807566ff45444.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9b89fb51be345ff9564807566ff45444.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9b89fb51be345ff9564807566ff45444.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\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 behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

1972 msdcsc.exe

pid	process
1972	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

9b89fb51be345ff9564807566ff45444.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeSecurityPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeTakeOwnershipPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeLoadDriverPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeSystemProfilePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeSystemtimePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeProfSingleProcessPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeIncBasePriorityPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeCreatePagefilePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeBackupPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeRestorePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeShutdownPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeDebugPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeSystemEnvironmentPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeChangeNotifyPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeRemoteShutdownPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeUndockPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeManageVolumePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeImpersonatePrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeCreateGlobalPrivilege	292	9b89fb51be345ff9564807566ff45444.exe
Token: 33	292	9b89fb51be345ff9564807566ff45444.exe
Token: 34	292	9b89fb51be345ff9564807566ff45444.exe
Token: 35	292	9b89fb51be345ff9564807566ff45444.exe
Token: SeIncreaseQuotaPrivilege	1972	msdcsc.exe
Token: SeSecurityPrivilege	1972	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1972	msdcsc.exe
Token: SeLoadDriverPrivilege	1972	msdcsc.exe
Token: SeSystemProfilePrivilege	1972	msdcsc.exe
Token: SeSystemtimePrivilege	1972	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1972	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1972	msdcsc.exe
Token: SeCreatePagefilePrivilege	1972	msdcsc.exe
Token: SeBackupPrivilege	1972	msdcsc.exe
Token: SeRestorePrivilege	1972	msdcsc.exe
Token: SeShutdownPrivilege	1972	msdcsc.exe
Token: SeDebugPrivilege	1972	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1972	msdcsc.exe
Token: SeChangeNotifyPrivilege	1972	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1972	msdcsc.exe
Token: SeUndockPrivilege	1972	msdcsc.exe
Token: SeManageVolumePrivilege	1972	msdcsc.exe
Token: SeImpersonatePrivilege	1972	msdcsc.exe
Token: SeCreateGlobalPrivilege	1972	msdcsc.exe
Token: 33	1972	msdcsc.exe
Token: 34	1972	msdcsc.exe
Token: 35	1972	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1972 msdcsc.exe

pid	process
1972	msdcsc.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

9b89fb51be345ff9564807566ff45444.exemsdcsc.exe

description	pid	process	target process
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 2012	292	9b89fb51be345ff9564807566ff45444.exe	notepad.exe
PID 292 wrote to memory of 1972	292	9b89fb51be345ff9564807566ff45444.exe	msdcsc.exe
PID 292 wrote to memory of 1972	292	9b89fb51be345ff9564807566ff45444.exe	msdcsc.exe
PID 292 wrote to memory of 1972	292	9b89fb51be345ff9564807566ff45444.exe	msdcsc.exe
PID 292 wrote to memory of 1972	292	9b89fb51be345ff9564807566ff45444.exe	msdcsc.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe
PID 1972 wrote to memory of 1788	1972	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\9b89fb51be345ff9564807566ff45444.exe
"C:\Users\Admin\AppData\Local\Temp\9b89fb51be345ff9564807566ff45444.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:292

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2012

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1788

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1ae87b63858a496bd9473e57fb4d8f31

SHA1
30593034cc80261649a334cde198d6c2dc3a866c

SHA256
113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d

SHA512
d02eb94c60c5361138942a2af0758c8b97e72fa898f31fbb75f4055cfb2eac6a5549407b57155b8c3ee2250b64e1849f662620f2a9d69a0da6057ca440bbe37c

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1ae87b63858a496bd9473e57fb4d8f31

SHA1
30593034cc80261649a334cde198d6c2dc3a866c

SHA256
113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d

SHA512
d02eb94c60c5361138942a2af0758c8b97e72fa898f31fbb75f4055cfb2eac6a5549407b57155b8c3ee2250b64e1849f662620f2a9d69a0da6057ca440bbe37c

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1ae87b63858a496bd9473e57fb4d8f31

SHA1
30593034cc80261649a334cde198d6c2dc3a866c

SHA256
113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d

SHA512
d02eb94c60c5361138942a2af0758c8b97e72fa898f31fbb75f4055cfb2eac6a5549407b57155b8c3ee2250b64e1849f662620f2a9d69a0da6057ca440bbe37c

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1ae87b63858a496bd9473e57fb4d8f31

SHA1
30593034cc80261649a334cde198d6c2dc3a866c

SHA256
113936749f6b08da52458f7536043df7dc3da181b084db8240d441ddc3d7c02d

SHA512
d02eb94c60c5361138942a2af0758c8b97e72fa898f31fbb75f4055cfb2eac6a5549407b57155b8c3ee2250b64e1849f662620f2a9d69a0da6057ca440bbe37c

Download Submit
memory/1788-10-0x0000000000000000-mapping.dmp

Download
memory/1788-9-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1788-8-0x0000000000000000-mapping.dmp

Download
memory/1972-5-0x0000000000000000-mapping.dmp

Download
memory/2012-0-0x0000000000000000-mapping.dmp

Download
memory/2012-1-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2012-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads