darkcomet | 43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09

Processes:

43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.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\\Roaming\\MSDCSC\\msdcsc.exe"	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.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

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

2888 attrib.exe
2524 attrib.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2692 msdcsc.exe

pid	process
2888	attrib.exe
2524	attrib.exe

pid	process
2692	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe

pid	process
2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeSecurityPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeTakeOwnershipPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeLoadDriverPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeSystemProfilePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeSystemtimePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeProfSingleProcessPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeIncBasePriorityPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeCreatePagefilePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeBackupPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeRestorePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeShutdownPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeDebugPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeSystemEnvironmentPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeChangeNotifyPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeRemoteShutdownPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeUndockPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeManageVolumePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeImpersonatePrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeCreateGlobalPrivilege	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: 33	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: 34	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: 35	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
Token: SeIncreaseQuotaPrivilege	2692	msdcsc.exe
Token: SeSecurityPrivilege	2692	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2692	msdcsc.exe
Token: SeLoadDriverPrivilege	2692	msdcsc.exe
Token: SeSystemProfilePrivilege	2692	msdcsc.exe
Token: SeSystemtimePrivilege	2692	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2692	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2692	msdcsc.exe
Token: SeCreatePagefilePrivilege	2692	msdcsc.exe
Token: SeBackupPrivilege	2692	msdcsc.exe
Token: SeRestorePrivilege	2692	msdcsc.exe
Token: SeShutdownPrivilege	2692	msdcsc.exe
Token: SeDebugPrivilege	2692	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2692	msdcsc.exe
Token: SeChangeNotifyPrivilege	2692	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2692	msdcsc.exe
Token: SeUndockPrivilege	2692	msdcsc.exe
Token: SeManageVolumePrivilege	2692	msdcsc.exe
Token: SeImpersonatePrivilege	2692	msdcsc.exe
Token: SeCreateGlobalPrivilege	2692	msdcsc.exe
Token: 33	2692	msdcsc.exe
Token: 34	2692	msdcsc.exe
Token: 35	2692	msdcsc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

2604 DllHost.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2692 msdcsc.exe

pid	process
2604	DllHost.exe

pid	process
2692	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.execmd.execmd.exe

description	pid	process	target process
PID 2264 wrote to memory of 2244	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2244	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2244	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2244	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2856	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2856	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2856	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2264 wrote to memory of 2856	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	cmd.exe
PID 2244 wrote to memory of 2888	2244	cmd.exe	attrib.exe
PID 2244 wrote to memory of 2888	2244	cmd.exe	attrib.exe
PID 2244 wrote to memory of 2888	2244	cmd.exe	attrib.exe
PID 2244 wrote to memory of 2888	2244	cmd.exe	attrib.exe
PID 2856 wrote to memory of 2524	2856	cmd.exe	attrib.exe
PID 2856 wrote to memory of 2524	2856	cmd.exe	attrib.exe
PID 2856 wrote to memory of 2524	2856	cmd.exe	attrib.exe
PID 2856 wrote to memory of 2524	2856	cmd.exe	attrib.exe
PID 2264 wrote to memory of 2692	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	msdcsc.exe
PID 2264 wrote to memory of 2692	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	msdcsc.exe
PID 2264 wrote to memory of 2692	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	msdcsc.exe
PID 2264 wrote to memory of 2692	2264	43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe	msdcsc.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

2888 attrib.exe
2524 attrib.exe

pid	process
2888	attrib.exe
2524	attrib.exe

C:\Users\Admin\AppData\Local\Temp\43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe
"C:\Users\Admin\AppData\Local\Temp\43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2244

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\43073226301eeeb038faa18c034a87a396544f0b7e96d8999a74369a5847cf09.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2888

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:2856

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:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:2692

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:2604

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

6

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery