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
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

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-1-5-21-275798769-4264537674-1142822080-1000\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

3236 attrib.exe
3772 attrib.exe

pid	process
3236	attrib.exe
3772	attrib.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:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

4736 notepad.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3576 msdcsc.exe

pid	process
4736	notepad.exe

pid	process
3576	msdcsc.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:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\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).

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

3576 msdcsc.exe

pid	process
3576	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSecurityPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeTakeOwnershipPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeLoadDriverPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemProfilePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemtimePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeProfSingleProcessPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeIncBasePriorityPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeCreatePagefilePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeBackupPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeRestorePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeShutdownPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeDebugPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeSystemEnvironmentPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeChangeNotifyPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeRemoteShutdownPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeUndockPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeManageVolumePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeImpersonatePrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeCreateGlobalPrivilege	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 33	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 34	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 35	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: 36	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
Token: SeIncreaseQuotaPrivilege	3576	msdcsc.exe
Token: SeSecurityPrivilege	3576	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3576	msdcsc.exe
Token: SeLoadDriverPrivilege	3576	msdcsc.exe
Token: SeSystemProfilePrivilege	3576	msdcsc.exe
Token: SeSystemtimePrivilege	3576	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3576	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3576	msdcsc.exe
Token: SeCreatePagefilePrivilege	3576	msdcsc.exe
Token: SeBackupPrivilege	3576	msdcsc.exe
Token: SeRestorePrivilege	3576	msdcsc.exe
Token: SeShutdownPrivilege	3576	msdcsc.exe
Token: SeDebugPrivilege	3576	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3576	msdcsc.exe
Token: SeChangeNotifyPrivilege	3576	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3576	msdcsc.exe
Token: SeUndockPrivilege	3576	msdcsc.exe
Token: SeManageVolumePrivilege	3576	msdcsc.exe
Token: SeImpersonatePrivilege	3576	msdcsc.exe
Token: SeCreateGlobalPrivilege	3576	msdcsc.exe
Token: 33	3576	msdcsc.exe
Token: 34	3576	msdcsc.exe
Token: 35	3576	msdcsc.exe
Token: 36	3576	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3576 msdcsc.exe

pid	process
3576	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

Processes:

001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1008 wrote to memory of 2692	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 2692	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 2692	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 4416	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 4416	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 4416	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	cmd.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 1008 wrote to memory of 4736	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	notepad.exe
PID 2692 wrote to memory of 3236	2692	cmd.exe	attrib.exe
PID 2692 wrote to memory of 3236	2692	cmd.exe	attrib.exe
PID 2692 wrote to memory of 3236	2692	cmd.exe	attrib.exe
PID 4416 wrote to memory of 3772	4416	cmd.exe	attrib.exe
PID 4416 wrote to memory of 3772	4416	cmd.exe	attrib.exe
PID 4416 wrote to memory of 3772	4416	cmd.exe	attrib.exe
PID 1008 wrote to memory of 3576	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 1008 wrote to memory of 3576	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 1008 wrote to memory of 3576	1008	001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe	msdcsc.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe
PID 3576 wrote to memory of 1324	3576	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

Processes:

msdcsc.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3236 attrib.exe
3772 attrib.exe

pid	process
3236	attrib.exe
3772	attrib.exe

C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.exe
"C:\Users\Admin\AppData\Local\Temp\001d1b9ef0730a65eeb9d7e745d9cebb76207406fa5d9580599cc46307c88d86.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:1008

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:2692

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:3236

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:4416

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3772

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:4736

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:3576

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1324

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

Query Registry

T1012

System Information Discovery