darkcomet | ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e

General

Target

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Size

658KB
MD5

840b5eeea3176f01d5852f76e769c5f6
SHA1

5c0a4613ecc7a354cf53cde8643861b58bf737a4
SHA256

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e
SHA512

6aeda1c472ff8bd3b12cf7e3b48620914353607aa0883b984a4b4044910f2034738be68cc2d677f3ea3a2776ae3ad48e843c3942400cc33af8c899f93885ad92
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hP:+Z1xuVVjfFoynPaVBUR8f+kN10EBh

Score

10^/10

darkcomet 1 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

1

C2

c0k3.no-ip.org:1604

Mutex

DC_MUTEX-8H85MRV

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
ZXqyaXHT9LjV
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:

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1780 msdcsc.exe

pid	process
1780	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:

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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

1780 msdcsc.exe

pid	process
1780	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeSecurityPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeTakeOwnershipPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeLoadDriverPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeSystemProfilePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeSystemtimePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeProfSingleProcessPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeIncBasePriorityPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeCreatePagefilePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeBackupPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeRestorePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeShutdownPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeDebugPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeSystemEnvironmentPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeChangeNotifyPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeRemoteShutdownPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeUndockPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeManageVolumePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeImpersonatePrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeCreateGlobalPrivilege	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: 33	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: 34	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: 35	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: 36	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
Token: SeIncreaseQuotaPrivilege	1780	msdcsc.exe
Token: SeSecurityPrivilege	1780	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1780	msdcsc.exe
Token: SeLoadDriverPrivilege	1780	msdcsc.exe
Token: SeSystemProfilePrivilege	1780	msdcsc.exe
Token: SeSystemtimePrivilege	1780	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1780	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1780	msdcsc.exe
Token: SeCreatePagefilePrivilege	1780	msdcsc.exe
Token: SeBackupPrivilege	1780	msdcsc.exe
Token: SeRestorePrivilege	1780	msdcsc.exe
Token: SeShutdownPrivilege	1780	msdcsc.exe
Token: SeDebugPrivilege	1780	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1780	msdcsc.exe
Token: SeChangeNotifyPrivilege	1780	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1780	msdcsc.exe
Token: SeUndockPrivilege	1780	msdcsc.exe
Token: SeManageVolumePrivilege	1780	msdcsc.exe
Token: SeImpersonatePrivilege	1780	msdcsc.exe
Token: SeCreateGlobalPrivilege	1780	msdcsc.exe
Token: 33	1780	msdcsc.exe
Token: 34	1780	msdcsc.exe
Token: 35	1780	msdcsc.exe
Token: 36	1780	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1780 msdcsc.exe

pid	process
1780	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exemsdcsc.exe

description	pid	process	target process
PID 4580 wrote to memory of 1780	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe	msdcsc.exe
PID 4580 wrote to memory of 1780	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe	msdcsc.exe
PID 4580 wrote to memory of 1780	4580	ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe	msdcsc.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe
PID 1780 wrote to memory of 2388	1780	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe
"C:\Users\Admin\AppData\Local\Temp\ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4580

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\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:1780

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2388

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

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\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
840b5eeea3176f01d5852f76e769c5f6

SHA1
5c0a4613ecc7a354cf53cde8643861b58bf737a4

SHA256
ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e

SHA512
6aeda1c472ff8bd3b12cf7e3b48620914353607aa0883b984a4b4044910f2034738be68cc2d677f3ea3a2776ae3ad48e843c3942400cc33af8c899f93885ad92

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
840b5eeea3176f01d5852f76e769c5f6

SHA1
5c0a4613ecc7a354cf53cde8643861b58bf737a4

SHA256
ab1477722843a045b21dd70fa847f760e82e2cc9750a6947dbda59fd9c7cdc3e

SHA512
6aeda1c472ff8bd3b12cf7e3b48620914353607aa0883b984a4b4044910f2034738be68cc2d677f3ea3a2776ae3ad48e843c3942400cc33af8c899f93885ad92

Download Submit
memory/1780-132-0x0000000000000000-mapping.dmp

Download
memory/2388-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads