darkcomet | 63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c

General

Target

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Size

251KB
MD5

871e48f28ac21f11460f540b2bca3ce3
SHA1

c536afca338c94f29efb91a4cf93bb1c3907b86c
SHA256

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c
SHA512

99c965f09325ec7532f0581452dfa5934b1054ad3d1b844e4c55d7db851d7c32552bd34d6dec308d8b712213f11f33c4929ed7170326071b00d698069e18d142

Score

10^/10

darkcomet evasion 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:

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.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"	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1972 msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	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

Loads dropped DLL 2 IoCs

Processes:

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe

pid	process
844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.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:

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeSecurityPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeTakeOwnershipPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeLoadDriverPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeSystemProfilePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeSystemtimePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeProfSingleProcessPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeIncBasePriorityPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeCreatePagefilePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeBackupPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeRestorePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeShutdownPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeDebugPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeSystemEnvironmentPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeChangeNotifyPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeRemoteShutdownPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeUndockPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeManageVolumePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeImpersonatePrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: SeCreateGlobalPrivilege	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: 33	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: 34	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
Token: 35	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.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 12 IoCs

Processes:

63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exemsdcsc.exe

description	pid	process	target process
PID 844 wrote to memory of 1972	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe	msdcsc.exe
PID 844 wrote to memory of 1972	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe	msdcsc.exe
PID 844 wrote to memory of 1972	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe	msdcsc.exe
PID 844 wrote to memory of 1972	844	63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe	msdcsc.exe
PID 1972 wrote to memory of 1940	1972	msdcsc.exe	iexplore.exe
PID 1972 wrote to memory of 1940	1972	msdcsc.exe	iexplore.exe
PID 1972 wrote to memory of 1940	1972	msdcsc.exe	iexplore.exe
PID 1972 wrote to memory of 1940	1972	msdcsc.exe	iexplore.exe
PID 1972 wrote to memory of 1936	1972	msdcsc.exe	explorer.exe
PID 1972 wrote to memory of 1936	1972	msdcsc.exe	explorer.exe
PID 1972 wrote to memory of 1936	1972	msdcsc.exe	explorer.exe
PID 1972 wrote to memory of 1936	1972	msdcsc.exe	explorer.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe
"C:\Users\Admin\AppData\Local\Temp\63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:844

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1972

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:1940

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:1936

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

T1112

Disabling Security Tools

2

T1089

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
871e48f28ac21f11460f540b2bca3ce3

SHA1
c536afca338c94f29efb91a4cf93bb1c3907b86c

SHA256
63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c

SHA512
99c965f09325ec7532f0581452dfa5934b1054ad3d1b844e4c55d7db851d7c32552bd34d6dec308d8b712213f11f33c4929ed7170326071b00d698069e18d142

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
871e48f28ac21f11460f540b2bca3ce3

SHA1
c536afca338c94f29efb91a4cf93bb1c3907b86c

SHA256
63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c

SHA512
99c965f09325ec7532f0581452dfa5934b1054ad3d1b844e4c55d7db851d7c32552bd34d6dec308d8b712213f11f33c4929ed7170326071b00d698069e18d142

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
871e48f28ac21f11460f540b2bca3ce3

SHA1
c536afca338c94f29efb91a4cf93bb1c3907b86c

SHA256
63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c

SHA512
99c965f09325ec7532f0581452dfa5934b1054ad3d1b844e4c55d7db851d7c32552bd34d6dec308d8b712213f11f33c4929ed7170326071b00d698069e18d142

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
871e48f28ac21f11460f540b2bca3ce3

SHA1
c536afca338c94f29efb91a4cf93bb1c3907b86c

SHA256
63a99ccfdc930abf9e0f91812ab262061124dda7182e1aecfda2aeaab35e467c

SHA512
99c965f09325ec7532f0581452dfa5934b1054ad3d1b844e4c55d7db851d7c32552bd34d6dec308d8b712213f11f33c4929ed7170326071b00d698069e18d142

Download Submit
memory/1972-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads