darkcomet | c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

General

Target

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Size

252KB
MD5

9d1f92ac5af5eff6e517e587e1e8278b
SHA1

732ca21d250323be7b2ef24c3c335005e839b196
SHA256

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608
SHA512

715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

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:

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.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"	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1364 msdcsc.exe

pid	process
1364	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

1224 notepad.exe

pid	process
1224	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe

pid	process
1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.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"	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.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

1364 msdcsc.exe

pid	process
1364	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeSecurityPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeTakeOwnershipPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeLoadDriverPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeSystemProfilePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeSystemtimePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeProfSingleProcessPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeIncBasePriorityPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeCreatePagefilePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeBackupPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeRestorePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeShutdownPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeDebugPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeSystemEnvironmentPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeChangeNotifyPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeRemoteShutdownPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeUndockPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeManageVolumePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeImpersonatePrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeCreateGlobalPrivilege	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: 33	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: 34	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: 35	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
Token: SeIncreaseQuotaPrivilege	1364	msdcsc.exe
Token: SeSecurityPrivilege	1364	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1364	msdcsc.exe
Token: SeLoadDriverPrivilege	1364	msdcsc.exe
Token: SeSystemProfilePrivilege	1364	msdcsc.exe
Token: SeSystemtimePrivilege	1364	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1364	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1364	msdcsc.exe
Token: SeCreatePagefilePrivilege	1364	msdcsc.exe
Token: SeBackupPrivilege	1364	msdcsc.exe
Token: SeRestorePrivilege	1364	msdcsc.exe
Token: SeShutdownPrivilege	1364	msdcsc.exe
Token: SeDebugPrivilege	1364	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1364	msdcsc.exe
Token: SeChangeNotifyPrivilege	1364	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1364	msdcsc.exe
Token: SeUndockPrivilege	1364	msdcsc.exe
Token: SeManageVolumePrivilege	1364	msdcsc.exe
Token: SeImpersonatePrivilege	1364	msdcsc.exe
Token: SeCreateGlobalPrivilege	1364	msdcsc.exe
Token: 33	1364	msdcsc.exe
Token: 34	1364	msdcsc.exe
Token: 35	1364	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1364 msdcsc.exe

pid	process
1364	msdcsc.exe

Suspicious use of WriteProcessMemory 53 IoCs

Processes:

c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exemsdcsc.exe

description	pid	process	target process
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1224	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	notepad.exe
PID 1068 wrote to memory of 1364	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	msdcsc.exe
PID 1068 wrote to memory of 1364	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	msdcsc.exe
PID 1068 wrote to memory of 1364	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	msdcsc.exe
PID 1068 wrote to memory of 1364	1068	c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe	msdcsc.exe
PID 1364 wrote to memory of 1408	1364	msdcsc.exe	iexplore.exe
PID 1364 wrote to memory of 1408	1364	msdcsc.exe	iexplore.exe
PID 1364 wrote to memory of 1408	1364	msdcsc.exe	iexplore.exe
PID 1364 wrote to memory of 1408	1364	msdcsc.exe	iexplore.exe
PID 1364 wrote to memory of 1784	1364	msdcsc.exe	explorer.exe
PID 1364 wrote to memory of 1784	1364	msdcsc.exe	explorer.exe
PID 1364 wrote to memory of 1784	1364	msdcsc.exe	explorer.exe
PID 1364 wrote to memory of 1784	1364	msdcsc.exe	explorer.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe
PID 1364 wrote to memory of 1744	1364	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe
"C:\Users\Admin\AppData\Local\Temp\c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1224

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:1364

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:1408

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:1784

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1744

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
9d1f92ac5af5eff6e517e587e1e8278b

SHA1
732ca21d250323be7b2ef24c3c335005e839b196

SHA256
c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

SHA512
715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
9d1f92ac5af5eff6e517e587e1e8278b

SHA1
732ca21d250323be7b2ef24c3c335005e839b196

SHA256
c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

SHA512
715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
9d1f92ac5af5eff6e517e587e1e8278b

SHA1
732ca21d250323be7b2ef24c3c335005e839b196

SHA256
c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

SHA512
715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
9d1f92ac5af5eff6e517e587e1e8278b

SHA1
732ca21d250323be7b2ef24c3c335005e839b196

SHA256
c97cf0d0a0a498ecfd3474d97cf5314f399dacea63701df422f1b0199ad28608

SHA512
715a7cdb9f2270c447aae9df60be3a2ace48fa276da2ef09161b558b255434e74f5fb3c423b82813c1574bd37e2645ea1cea3375bb613c2b6c7064ed95478063

Download Submit
memory/1224-0-0x0000000000000000-mapping.dmp

Download
memory/1224-1-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/1224-2-0x0000000000000000-mapping.dmp

Download
memory/1364-5-0x0000000000000000-mapping.dmp

Download
memory/1744-8-0x0000000000000000-mapping.dmp

Download
memory/1744-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1744-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads