darkcomet | 2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5

General

Target

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Size

756KB
MD5

2fa4b346f9d431e8bbfa63e6f1dcf6a1
SHA1

e8601bf601a9a2d0b1871fa49a05aab1cefec1b9
SHA256

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5
SHA512

64cb8d487c9dd36204bcb0fba11b2c7ec384049221bf35ce2076242b63559f26010dbaca9bf962df9faf818d1549bec7153b41cccec8b188f2b116cda48138b4
SSDEEP

12288:n9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hVsvv/:BZ1xuVVjfFoynPaVBUR8f+kN10EBsvv/

Score

10^/10

darkcomet r1 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

R1

C2

csgohackzz.ddns.net:1096

Mutex

DC_MUTEX-46JEUN6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
X6gK8NP6mhLx
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:

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.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"	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.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

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

Windows security bypass 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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2004 msdcsc.exe

pid	process
2004	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe

pid	process
1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\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

2004 msdcsc.exe

pid	process
2004	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeSecurityPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeTakeOwnershipPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeLoadDriverPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeSystemProfilePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeSystemtimePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeProfSingleProcessPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeIncBasePriorityPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeCreatePagefilePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeBackupPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeRestorePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeShutdownPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeDebugPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeSystemEnvironmentPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeChangeNotifyPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeRemoteShutdownPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeUndockPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeManageVolumePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeImpersonatePrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeCreateGlobalPrivilege	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: 33	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: 34	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: 35	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
Token: SeIncreaseQuotaPrivilege	2004	msdcsc.exe
Token: SeSecurityPrivilege	2004	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2004	msdcsc.exe
Token: SeLoadDriverPrivilege	2004	msdcsc.exe
Token: SeSystemProfilePrivilege	2004	msdcsc.exe
Token: SeSystemtimePrivilege	2004	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2004	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2004	msdcsc.exe
Token: SeCreatePagefilePrivilege	2004	msdcsc.exe
Token: SeBackupPrivilege	2004	msdcsc.exe
Token: SeRestorePrivilege	2004	msdcsc.exe
Token: SeShutdownPrivilege	2004	msdcsc.exe
Token: SeDebugPrivilege	2004	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2004	msdcsc.exe
Token: SeChangeNotifyPrivilege	2004	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2004	msdcsc.exe
Token: SeUndockPrivilege	2004	msdcsc.exe
Token: SeManageVolumePrivilege	2004	msdcsc.exe
Token: SeImpersonatePrivilege	2004	msdcsc.exe
Token: SeCreateGlobalPrivilege	2004	msdcsc.exe
Token: 33	2004	msdcsc.exe
Token: 34	2004	msdcsc.exe
Token: 35	2004	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2004 msdcsc.exe

pid	process
2004	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exemsdcsc.exe

description	pid	process	target process
PID 1936 wrote to memory of 2004	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe	msdcsc.exe
PID 1936 wrote to memory of 2004	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe	msdcsc.exe
PID 1936 wrote to memory of 2004	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe	msdcsc.exe
PID 1936 wrote to memory of 2004	1936	2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe	msdcsc.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe
PID 2004 wrote to memory of 1988	2004	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

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

C:\Users\Admin\AppData\Local\Temp\2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe
"C:\Users\Admin\AppData\Local\Temp\2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2004

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1988

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

2

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

7

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\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
2fa4b346f9d431e8bbfa63e6f1dcf6a1

SHA1
e8601bf601a9a2d0b1871fa49a05aab1cefec1b9

SHA256
2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5

SHA512
64cb8d487c9dd36204bcb0fba11b2c7ec384049221bf35ce2076242b63559f26010dbaca9bf962df9faf818d1549bec7153b41cccec8b188f2b116cda48138b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
2fa4b346f9d431e8bbfa63e6f1dcf6a1

SHA1
e8601bf601a9a2d0b1871fa49a05aab1cefec1b9

SHA256
2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5

SHA512
64cb8d487c9dd36204bcb0fba11b2c7ec384049221bf35ce2076242b63559f26010dbaca9bf962df9faf818d1549bec7153b41cccec8b188f2b116cda48138b4

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
2fa4b346f9d431e8bbfa63e6f1dcf6a1

SHA1
e8601bf601a9a2d0b1871fa49a05aab1cefec1b9

SHA256
2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5

SHA512
64cb8d487c9dd36204bcb0fba11b2c7ec384049221bf35ce2076242b63559f26010dbaca9bf962df9faf818d1549bec7153b41cccec8b188f2b116cda48138b4

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
2fa4b346f9d431e8bbfa63e6f1dcf6a1

SHA1
e8601bf601a9a2d0b1871fa49a05aab1cefec1b9

SHA256
2243df2e91e114754b72250f4bb753edfc6d6dc6518656cad0890f743dca22f5

SHA512
64cb8d487c9dd36204bcb0fba11b2c7ec384049221bf35ce2076242b63559f26010dbaca9bf962df9faf818d1549bec7153b41cccec8b188f2b116cda48138b4

Download Submit
memory/1936-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1988-61-0x0000000000000000-mapping.dmp

Download
memory/2004-57-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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