darkcomet | a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b

General

Target

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Size

252KB
MD5

3e734884cff7885e868bd18a37d626b2
SHA1

e76e6ee891dbfc141218b5fe4378f9a851664224
SHA256

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b
SHA512

30df6493053c37eb1b494009557672f30d1d67c71145950aea0e2112c64d905f071b0d543b1da73965b823ef03bc1b43ff6d37dab5f0b27b876291fe3c271701

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:

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.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"	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1984 msdcsc.exe

pid	process
1984	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

1444 notepad.exe

pid	process
1444	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe

pid	process
2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.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"	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.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

1984 msdcsc.exe

pid	process
1984	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeSecurityPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeTakeOwnershipPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeLoadDriverPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeSystemProfilePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeSystemtimePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeProfSingleProcessPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeIncBasePriorityPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeCreatePagefilePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeBackupPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeRestorePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeShutdownPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeDebugPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeSystemEnvironmentPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeChangeNotifyPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeRemoteShutdownPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeUndockPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeManageVolumePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeImpersonatePrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeCreateGlobalPrivilege	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: 33	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: 34	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: 35	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
Token: SeIncreaseQuotaPrivilege	1984	msdcsc.exe
Token: SeSecurityPrivilege	1984	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1984	msdcsc.exe
Token: SeLoadDriverPrivilege	1984	msdcsc.exe
Token: SeSystemProfilePrivilege	1984	msdcsc.exe
Token: SeSystemtimePrivilege	1984	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1984	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1984	msdcsc.exe
Token: SeCreatePagefilePrivilege	1984	msdcsc.exe
Token: SeBackupPrivilege	1984	msdcsc.exe
Token: SeRestorePrivilege	1984	msdcsc.exe
Token: SeShutdownPrivilege	1984	msdcsc.exe
Token: SeDebugPrivilege	1984	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1984	msdcsc.exe
Token: SeChangeNotifyPrivilege	1984	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1984	msdcsc.exe
Token: SeUndockPrivilege	1984	msdcsc.exe
Token: SeManageVolumePrivilege	1984	msdcsc.exe
Token: SeImpersonatePrivilege	1984	msdcsc.exe
Token: SeCreateGlobalPrivilege	1984	msdcsc.exe
Token: 33	1984	msdcsc.exe
Token: 34	1984	msdcsc.exe
Token: 35	1984	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1984 msdcsc.exe

pid	process
1984	msdcsc.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exemsdcsc.exe

description	pid	process	target process
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1444	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	notepad.exe
PID 2028 wrote to memory of 1984	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	msdcsc.exe
PID 2028 wrote to memory of 1984	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	msdcsc.exe
PID 2028 wrote to memory of 1984	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	msdcsc.exe
PID 2028 wrote to memory of 1984	2028	a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe	msdcsc.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe
PID 1984 wrote to memory of 1748	1984	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe
"C:\Users\Admin\AppData\Local\Temp\a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1444

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:1984

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1748

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3e734884cff7885e868bd18a37d626b2

SHA1
e76e6ee891dbfc141218b5fe4378f9a851664224

SHA256
a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b

SHA512
30df6493053c37eb1b494009557672f30d1d67c71145950aea0e2112c64d905f071b0d543b1da73965b823ef03bc1b43ff6d37dab5f0b27b876291fe3c271701

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3e734884cff7885e868bd18a37d626b2

SHA1
e76e6ee891dbfc141218b5fe4378f9a851664224

SHA256
a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b

SHA512
30df6493053c37eb1b494009557672f30d1d67c71145950aea0e2112c64d905f071b0d543b1da73965b823ef03bc1b43ff6d37dab5f0b27b876291fe3c271701

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3e734884cff7885e868bd18a37d626b2

SHA1
e76e6ee891dbfc141218b5fe4378f9a851664224

SHA256
a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b

SHA512
30df6493053c37eb1b494009557672f30d1d67c71145950aea0e2112c64d905f071b0d543b1da73965b823ef03bc1b43ff6d37dab5f0b27b876291fe3c271701

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
3e734884cff7885e868bd18a37d626b2

SHA1
e76e6ee891dbfc141218b5fe4378f9a851664224

SHA256
a413b2f308d79534c8989b5b1f63663c261e8258caf452ae021a4a0c291f5f7b

SHA512
30df6493053c37eb1b494009557672f30d1d67c71145950aea0e2112c64d905f071b0d543b1da73965b823ef03bc1b43ff6d37dab5f0b27b876291fe3c271701

Download Submit
memory/1444-0-0x0000000000000000-mapping.dmp

Download
memory/1444-2-0x0000000000000000-mapping.dmp

Download
memory/1444-1-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1748-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1748-10-0x0000000000000000-mapping.dmp

Download
memory/1748-8-0x0000000000000000-mapping.dmp

Download
memory/1984-5-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads