darkcomet | 494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db

General

Target

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Size

658KB
MD5

d3589c94215ab602474b5d6b6e7a6380
SHA1

49c2134fb14c2546771933b1ddfc53dd0561aa00
SHA256

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db
SHA512

e2625c5dcd3f44528baf998acf1b6867e6dbaba94679cb6e5faa6b024552f17b2d62442ba04eef57e32f1706572e1ddcdd60748ebd9169b85b8062b6d5641bfa

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

8.tcp.ngrok.io:13657

Mutex

DC_MUTEX-G3PH8LT

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
wAgcpnDzigN6
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.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"	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.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 1 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
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

680 msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

pid	process
680	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe

Windows security modification 2 TTPs 1 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

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\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

Modifies registry class 1 IoCs

Processes:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeSecurityPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeTakeOwnershipPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeLoadDriverPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeSystemProfilePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeSystemtimePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeProfSingleProcessPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeIncBasePriorityPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeCreatePagefilePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeBackupPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeRestorePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeShutdownPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeDebugPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeSystemEnvironmentPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeChangeNotifyPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeRemoteShutdownPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeUndockPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeManageVolumePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeImpersonatePrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeCreateGlobalPrivilege	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: 33	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: 34	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: 35	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: 36	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
Token: SeIncreaseQuotaPrivilege	680	msdcsc.exe
Token: SeSecurityPrivilege	680	msdcsc.exe
Token: SeTakeOwnershipPrivilege	680	msdcsc.exe
Token: SeLoadDriverPrivilege	680	msdcsc.exe
Token: SeSystemProfilePrivilege	680	msdcsc.exe
Token: SeSystemtimePrivilege	680	msdcsc.exe
Token: SeProfSingleProcessPrivilege	680	msdcsc.exe
Token: SeIncBasePriorityPrivilege	680	msdcsc.exe
Token: SeCreatePagefilePrivilege	680	msdcsc.exe
Token: SeBackupPrivilege	680	msdcsc.exe
Token: SeRestorePrivilege	680	msdcsc.exe
Token: SeShutdownPrivilege	680	msdcsc.exe
Token: SeDebugPrivilege	680	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	680	msdcsc.exe
Token: SeChangeNotifyPrivilege	680	msdcsc.exe
Token: SeRemoteShutdownPrivilege	680	msdcsc.exe
Token: SeUndockPrivilege	680	msdcsc.exe
Token: SeManageVolumePrivilege	680	msdcsc.exe
Token: SeImpersonatePrivilege	680	msdcsc.exe
Token: SeCreateGlobalPrivilege	680	msdcsc.exe
Token: 33	680	msdcsc.exe
Token: 34	680	msdcsc.exe
Token: 35	680	msdcsc.exe
Token: 36	680	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

680 msdcsc.exe

pid	process
680	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exemsdcsc.exe

description	pid	process	target process
PID 4032 wrote to memory of 680	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe	msdcsc.exe
PID 4032 wrote to memory of 680	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe	msdcsc.exe
PID 4032 wrote to memory of 680	4032	494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe	msdcsc.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe
PID 680 wrote to memory of 3656	680	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe
"C:\Users\Admin\AppData\Local\Temp\494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4032

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:680

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3656

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

5

T1112

Disabling Security Tools

2

T1089

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
d3589c94215ab602474b5d6b6e7a6380

SHA1
49c2134fb14c2546771933b1ddfc53dd0561aa00

SHA256
494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db

SHA512
e2625c5dcd3f44528baf998acf1b6867e6dbaba94679cb6e5faa6b024552f17b2d62442ba04eef57e32f1706572e1ddcdd60748ebd9169b85b8062b6d5641bfa

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
d3589c94215ab602474b5d6b6e7a6380

SHA1
49c2134fb14c2546771933b1ddfc53dd0561aa00

SHA256
494f1f9db5268247533e28b2a3785de4bea7cd123e050d97700964943922a6db

SHA512
e2625c5dcd3f44528baf998acf1b6867e6dbaba94679cb6e5faa6b024552f17b2d62442ba04eef57e32f1706572e1ddcdd60748ebd9169b85b8062b6d5641bfa

Download Submit
memory/680-130-0x0000000000000000-mapping.dmp

Download
memory/3656-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads