darkcomet | dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd

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"	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe

Modifies firewall policy service 3 TTPs 3 IoCs

Modify Registry

Windows Service

Disable or Modify System Firewall

T1562.004

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

Modify Registry

Windows Service

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

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\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.

Hidden Files and Directories

T1564.001

pid	Process
1056	attrib.exe
2940	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe

Deletes itself 1 IoCs

pid	Process
760	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\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).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeSecurityPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeTakeOwnershipPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeLoadDriverPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeSystemProfilePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeSystemtimePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeProfSingleProcessPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeIncBasePriorityPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeCreatePagefilePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeBackupPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeRestorePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeShutdownPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeDebugPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeSystemEnvironmentPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeChangeNotifyPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeRemoteShutdownPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeUndockPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeManageVolumePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeImpersonatePrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeCreateGlobalPrivilege	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: 33	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: 34	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: 35	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: 36	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
Token: SeIncreaseQuotaPrivilege	2776	msdcsc.exe
Token: SeSecurityPrivilege	2776	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2776	msdcsc.exe
Token: SeLoadDriverPrivilege	2776	msdcsc.exe
Token: SeSystemProfilePrivilege	2776	msdcsc.exe
Token: SeSystemtimePrivilege	2776	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2776	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2776	msdcsc.exe
Token: SeCreatePagefilePrivilege	2776	msdcsc.exe
Token: SeBackupPrivilege	2776	msdcsc.exe
Token: SeRestorePrivilege	2776	msdcsc.exe
Token: SeShutdownPrivilege	2776	msdcsc.exe
Token: SeDebugPrivilege	2776	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2776	msdcsc.exe
Token: SeChangeNotifyPrivilege	2776	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2776	msdcsc.exe
Token: SeUndockPrivilege	2776	msdcsc.exe
Token: SeManageVolumePrivilege	2776	msdcsc.exe
Token: SeImpersonatePrivilege	2776	msdcsc.exe
Token: SeCreateGlobalPrivilege	2776	msdcsc.exe
Token: 33	2776	msdcsc.exe
Token: 34	2776	msdcsc.exe
Token: 35	2776	msdcsc.exe
Token: 36	2776	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2776	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 4996	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	82
PID 4048 wrote to memory of 4996	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	82
PID 4048 wrote to memory of 4996	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	82
PID 4048 wrote to memory of 2576	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	83
PID 4048 wrote to memory of 2576	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	83
PID 4048 wrote to memory of 2576	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	83
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 4048 wrote to memory of 760	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	85
PID 2576 wrote to memory of 1056	2576	cmd.exe	87
PID 2576 wrote to memory of 1056	2576	cmd.exe	87
PID 2576 wrote to memory of 1056	2576	cmd.exe	87
PID 4996 wrote to memory of 2940	4996	cmd.exe	88
PID 4996 wrote to memory of 2940	4996	cmd.exe	88
PID 4996 wrote to memory of 2940	4996	cmd.exe	88
PID 4048 wrote to memory of 2776	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	89
PID 4048 wrote to memory of 2776	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	89
PID 4048 wrote to memory of 2776	4048	dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe	89
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90
PID 2776 wrote to memory of 3792	2776	msdcsc.exe	90

System policy modification 1 TTPs 3 IoCs

Modify Registry

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

Hidden Files and Directories

T1564.001

pid	Process
1056	attrib.exe
2940	attrib.exe

C:\Users\Admin\AppData\Local\Temp\dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe
"C:\Users\Admin\AppData\Local\Temp\dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\dc27c0a88d38ac8b30573a8868c920bf2d537fe381950a85716d15e4343254dd.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1056
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:760
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2776
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry