darkcomet | 110c0ac80f4d6a7e73183cf5a98f83440943afe69abca9a572ca4a4e54de7d13

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\\IDMAN.exe"	CRACKED.EXE

Modifies firewall policy service 3 TTPs 3 IoCs

defense_evasion

Modify Registry

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	NanoCore.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	CRACKED.EXE

Executes dropped EXE 3 IoCs

pid	Process
3160	CRACKED.EXE
2408	NANOCORE.EXE
3936	IDMAN.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IDMAN = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\IDMAN.exe"	CRACKED.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IDMAN = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\IDMAN.exe"	IDMAN.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 4 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	IDMAN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NanoCore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CRACKED.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3936	IDMAN.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3160	CRACKED.EXE
Token: SeSecurityPrivilege	3160	CRACKED.EXE
Token: SeTakeOwnershipPrivilege	3160	CRACKED.EXE
Token: SeLoadDriverPrivilege	3160	CRACKED.EXE
Token: SeSystemProfilePrivilege	3160	CRACKED.EXE
Token: SeSystemtimePrivilege	3160	CRACKED.EXE
Token: SeProfSingleProcessPrivilege	3160	CRACKED.EXE
Token: SeIncBasePriorityPrivilege	3160	CRACKED.EXE
Token: SeCreatePagefilePrivilege	3160	CRACKED.EXE
Token: SeBackupPrivilege	3160	CRACKED.EXE
Token: SeRestorePrivilege	3160	CRACKED.EXE
Token: SeShutdownPrivilege	3160	CRACKED.EXE
Token: SeDebugPrivilege	3160	CRACKED.EXE
Token: SeSystemEnvironmentPrivilege	3160	CRACKED.EXE
Token: SeChangeNotifyPrivilege	3160	CRACKED.EXE
Token: SeRemoteShutdownPrivilege	3160	CRACKED.EXE
Token: SeUndockPrivilege	3160	CRACKED.EXE
Token: SeManageVolumePrivilege	3160	CRACKED.EXE
Token: SeImpersonatePrivilege	3160	CRACKED.EXE
Token: SeCreateGlobalPrivilege	3160	CRACKED.EXE
Token: 33	3160	CRACKED.EXE
Token: 34	3160	CRACKED.EXE
Token: 35	3160	CRACKED.EXE
Token: 36	3160	CRACKED.EXE
Token: SeIncreaseQuotaPrivilege	3936	IDMAN.exe
Token: SeSecurityPrivilege	3936	IDMAN.exe
Token: SeTakeOwnershipPrivilege	3936	IDMAN.exe
Token: SeLoadDriverPrivilege	3936	IDMAN.exe
Token: SeSystemProfilePrivilege	3936	IDMAN.exe
Token: SeSystemtimePrivilege	3936	IDMAN.exe
Token: SeProfSingleProcessPrivilege	3936	IDMAN.exe
Token: SeIncBasePriorityPrivilege	3936	IDMAN.exe
Token: SeCreatePagefilePrivilege	3936	IDMAN.exe
Token: SeBackupPrivilege	3936	IDMAN.exe
Token: SeRestorePrivilege	3936	IDMAN.exe
Token: SeShutdownPrivilege	3936	IDMAN.exe
Token: SeDebugPrivilege	3936	IDMAN.exe
Token: SeSystemEnvironmentPrivilege	3936	IDMAN.exe
Token: SeChangeNotifyPrivilege	3936	IDMAN.exe
Token: SeRemoteShutdownPrivilege	3936	IDMAN.exe
Token: SeUndockPrivilege	3936	IDMAN.exe
Token: SeManageVolumePrivilege	3936	IDMAN.exe
Token: SeImpersonatePrivilege	3936	IDMAN.exe
Token: SeCreateGlobalPrivilege	3936	IDMAN.exe
Token: 33	3936	IDMAN.exe
Token: 34	3936	IDMAN.exe
Token: 35	3936	IDMAN.exe
Token: 36	3936	IDMAN.exe
Token: SeBackupPrivilege	1980	dw20.exe
Token: SeBackupPrivilege	1980	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3936	IDMAN.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 3160	4564	NanoCore.exe	82
PID 4564 wrote to memory of 3160	4564	NanoCore.exe	82
PID 4564 wrote to memory of 3160	4564	NanoCore.exe	82
PID 4564 wrote to memory of 2408	4564	NanoCore.exe	83
PID 4564 wrote to memory of 2408	4564	NanoCore.exe	83
PID 3160 wrote to memory of 3936	3160	CRACKED.EXE	84
PID 3160 wrote to memory of 3936	3160	CRACKED.EXE	84
PID 3160 wrote to memory of 3936	3160	CRACKED.EXE	84
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 3936 wrote to memory of 1496	3936	IDMAN.exe	85
PID 2408 wrote to memory of 1980	2408	NANOCORE.EXE	86
PID 2408 wrote to memory of 1980	2408	NANOCORE.EXE	86

C:\Users\Admin\AppData\Local\Temp\NanoCore-master\sample\NanoCore.exe
"C:\Users\Admin\AppData\Local\Temp\NanoCore-master\sample\NanoCore.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Users\Admin\AppData\Roaming\CRACKED.EXE
  "C:\Users\Admin\AppData\Roaming\CRACKED.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Users\Admin\AppData\Roaming\MSDCSC\IDMAN.exe
    "C:\Users\Admin\AppData\Roaming\MSDCSC\IDMAN.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - 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
    PID:3936
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:1496
- C:\Users\Admin\AppData\Roaming\NANOCORE.EXE
  "C:\Users\Admin\AppData\Roaming\NANOCORE.EXE"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 1188
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1980

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

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery