darkcomet | 1111f013a010a57a6739a8d4d0891728547cbbf80e45e77369a05d3423a28915

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

evasion

Modify Registry

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	NanoCore.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	CRACKED.EXE

Executes dropped EXE 3 IoCs

pid	Process
5032	CRACKED.EXE
4448	NANOCORE.EXE
5112	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IDMAN = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\IDMAN.exe"	CRACKED.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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	NanoCore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CRACKED.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IDMAN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
5112	IDMAN.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5032	CRACKED.EXE
Token: SeSecurityPrivilege	5032	CRACKED.EXE
Token: SeTakeOwnershipPrivilege	5032	CRACKED.EXE
Token: SeLoadDriverPrivilege	5032	CRACKED.EXE
Token: SeSystemProfilePrivilege	5032	CRACKED.EXE
Token: SeSystemtimePrivilege	5032	CRACKED.EXE
Token: SeProfSingleProcessPrivilege	5032	CRACKED.EXE
Token: SeIncBasePriorityPrivilege	5032	CRACKED.EXE
Token: SeCreatePagefilePrivilege	5032	CRACKED.EXE
Token: SeBackupPrivilege	5032	CRACKED.EXE
Token: SeRestorePrivilege	5032	CRACKED.EXE
Token: SeShutdownPrivilege	5032	CRACKED.EXE
Token: SeDebugPrivilege	5032	CRACKED.EXE
Token: SeSystemEnvironmentPrivilege	5032	CRACKED.EXE
Token: SeChangeNotifyPrivilege	5032	CRACKED.EXE
Token: SeRemoteShutdownPrivilege	5032	CRACKED.EXE
Token: SeUndockPrivilege	5032	CRACKED.EXE
Token: SeManageVolumePrivilege	5032	CRACKED.EXE
Token: SeImpersonatePrivilege	5032	CRACKED.EXE
Token: SeCreateGlobalPrivilege	5032	CRACKED.EXE
Token: 33	5032	CRACKED.EXE
Token: 34	5032	CRACKED.EXE
Token: 35	5032	CRACKED.EXE
Token: 36	5032	CRACKED.EXE
Token: SeIncreaseQuotaPrivilege	5112	IDMAN.exe
Token: SeSecurityPrivilege	5112	IDMAN.exe
Token: SeTakeOwnershipPrivilege	5112	IDMAN.exe
Token: SeLoadDriverPrivilege	5112	IDMAN.exe
Token: SeSystemProfilePrivilege	5112	IDMAN.exe
Token: SeSystemtimePrivilege	5112	IDMAN.exe
Token: SeProfSingleProcessPrivilege	5112	IDMAN.exe
Token: SeIncBasePriorityPrivilege	5112	IDMAN.exe
Token: SeCreatePagefilePrivilege	5112	IDMAN.exe
Token: SeBackupPrivilege	5112	IDMAN.exe
Token: SeRestorePrivilege	5112	IDMAN.exe
Token: SeShutdownPrivilege	5112	IDMAN.exe
Token: SeDebugPrivilege	5112	IDMAN.exe
Token: SeSystemEnvironmentPrivilege	5112	IDMAN.exe
Token: SeChangeNotifyPrivilege	5112	IDMAN.exe
Token: SeRemoteShutdownPrivilege	5112	IDMAN.exe
Token: SeUndockPrivilege	5112	IDMAN.exe
Token: SeManageVolumePrivilege	5112	IDMAN.exe
Token: SeImpersonatePrivilege	5112	IDMAN.exe
Token: SeCreateGlobalPrivilege	5112	IDMAN.exe
Token: 33	5112	IDMAN.exe
Token: 34	5112	IDMAN.exe
Token: 35	5112	IDMAN.exe
Token: 36	5112	IDMAN.exe
Token: SeBackupPrivilege	1796	dw20.exe
Token: SeBackupPrivilege	1796	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5112	IDMAN.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 5032	2624	NanoCore.exe	83
PID 2624 wrote to memory of 5032	2624	NanoCore.exe	83
PID 2624 wrote to memory of 5032	2624	NanoCore.exe	83
PID 2624 wrote to memory of 4448	2624	NanoCore.exe	84
PID 2624 wrote to memory of 4448	2624	NanoCore.exe	84
PID 5032 wrote to memory of 5112	5032	CRACKED.EXE	85
PID 5032 wrote to memory of 5112	5032	CRACKED.EXE	85
PID 5032 wrote to memory of 5112	5032	CRACKED.EXE	85
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 5112 wrote to memory of 3140	5112	IDMAN.exe	86
PID 4448 wrote to memory of 1796	4448	NANOCORE.EXE	87
PID 4448 wrote to memory of 1796	4448	NANOCORE.EXE	87

C:\Users\Admin\AppData\Local\Temp\NanoCore.exe
"C:\Users\Admin\AppData\Local\Temp\NanoCore.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2624
- 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:5032
- - 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:5112
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3140
- C:\Users\Admin\AppData\Roaming\NANOCORE.EXE
  "C:\Users\Admin\AppData\Roaming\NANOCORE.EXE"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4448
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 1104
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:1796

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