darkcomet | 001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.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"	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

Windows Service

T1543.003

Processes:

msdcsc.exe

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

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

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

Disable or Modify Tools

T1562.001

Modify Registry

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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3064 attrib.exe
2524 attrib.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2920 notepad.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2400 msdcsc.exe

pid	process
3064	attrib.exe
2524	attrib.exe

pid	process
2920	notepad.exe

pid	process
2400	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

pid	process
1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

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

T1547.001

Modify Registry

Processes:

msdcsc.exe001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

2400 msdcsc.exe

pid	process
2400	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSecurityPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeTakeOwnershipPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeLoadDriverPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemProfilePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemtimePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeProfSingleProcessPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeIncBasePriorityPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeCreatePagefilePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeBackupPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeRestorePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeShutdownPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeDebugPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemEnvironmentPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeChangeNotifyPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeRemoteShutdownPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeUndockPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeManageVolumePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeImpersonatePrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeCreateGlobalPrivilege	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 33	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 34	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 35	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeIncreaseQuotaPrivilege	2400	msdcsc.exe
Token: SeSecurityPrivilege	2400	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2400	msdcsc.exe
Token: SeLoadDriverPrivilege	2400	msdcsc.exe
Token: SeSystemProfilePrivilege	2400	msdcsc.exe
Token: SeSystemtimePrivilege	2400	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2400	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2400	msdcsc.exe
Token: SeCreatePagefilePrivilege	2400	msdcsc.exe
Token: SeBackupPrivilege	2400	msdcsc.exe
Token: SeRestorePrivilege	2400	msdcsc.exe
Token: SeShutdownPrivilege	2400	msdcsc.exe
Token: SeDebugPrivilege	2400	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2400	msdcsc.exe
Token: SeChangeNotifyPrivilege	2400	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2400	msdcsc.exe
Token: SeUndockPrivilege	2400	msdcsc.exe
Token: SeManageVolumePrivilege	2400	msdcsc.exe
Token: SeImpersonatePrivilege	2400	msdcsc.exe
Token: SeCreateGlobalPrivilege	2400	msdcsc.exe
Token: 33	2400	msdcsc.exe
Token: 34	2400	msdcsc.exe
Token: 35	2400	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2400 msdcsc.exe

pid	process
2400	msdcsc.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1708 wrote to memory of 3028	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 3028	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 3028	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 3028	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 2844	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 2844	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 2844	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 2844	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 3028 wrote to memory of 3064	3028	cmd.exe	attrib.exe
PID 3028 wrote to memory of 3064	3028	cmd.exe	attrib.exe
PID 3028 wrote to memory of 3064	3028	cmd.exe	attrib.exe
PID 3028 wrote to memory of 3064	3028	cmd.exe	attrib.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 2844 wrote to memory of 2524	2844	cmd.exe	attrib.exe
PID 2844 wrote to memory of 2524	2844	cmd.exe	attrib.exe
PID 2844 wrote to memory of 2524	2844	cmd.exe	attrib.exe
PID 2844 wrote to memory of 2524	2844	cmd.exe	attrib.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2920	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1708 wrote to memory of 2400	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 1708 wrote to memory of 2400	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 1708 wrote to memory of 2400	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 1708 wrote to memory of 2400	1708	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe
PID 2400 wrote to memory of 2388	2400	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2524 attrib.exe
3064 attrib.exe

pid	process
2524	attrib.exe
3064	attrib.exe

C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
"C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3028

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2844

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2524

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2920

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\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:2400

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

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

7

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery