darkcomet | 23ff7de42ea09c954f36e8554632547c3365fe821e11bb1eac061e1115ba15d4

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	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1"	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	explorer.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	Server.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1"	Server.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1"	Server.exe

Windows security bypass 2 TTPs 2 IoCs

defense_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"	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	explorer.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS 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\SystemBiosDate	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	Server.exe

Executes dropped EXE 3 IoCs

pid	Process
3284	7za.exe
3048	Server.exe
5584	RUNESCAPE_PIN_GENERATOR.EXE

Windows security modification 2 TTPs 1 IoCs

defense_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"	Server.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 3692	3048	Server.exe	93

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 6 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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7za.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RUNESCAPE_PIN_GENERATOR.EXE

Checks processor information in registry 2 TTPs 8 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\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Server.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3048	Server.exe
Token: SeSecurityPrivilege	3048	Server.exe
Token: SeTakeOwnershipPrivilege	3048	Server.exe
Token: SeLoadDriverPrivilege	3048	Server.exe
Token: SeSystemProfilePrivilege	3048	Server.exe
Token: SeSystemtimePrivilege	3048	Server.exe
Token: SeProfSingleProcessPrivilege	3048	Server.exe
Token: SeIncBasePriorityPrivilege	3048	Server.exe
Token: SeCreatePagefilePrivilege	3048	Server.exe
Token: SeBackupPrivilege	3048	Server.exe
Token: SeRestorePrivilege	3048	Server.exe
Token: SeShutdownPrivilege	3048	Server.exe
Token: SeDebugPrivilege	3048	Server.exe
Token: SeSystemEnvironmentPrivilege	3048	Server.exe
Token: SeChangeNotifyPrivilege	3048	Server.exe
Token: SeRemoteShutdownPrivilege	3048	Server.exe
Token: SeUndockPrivilege	3048	Server.exe
Token: SeManageVolumePrivilege	3048	Server.exe
Token: SeImpersonatePrivilege	3048	Server.exe
Token: SeCreateGlobalPrivilege	3048	Server.exe
Token: 33	3048	Server.exe
Token: 34	3048	Server.exe
Token: 35	3048	Server.exe
Token: 36	3048	Server.exe
Token: SeIncreaseQuotaPrivilege	3692	explorer.exe
Token: SeSecurityPrivilege	3692	explorer.exe
Token: SeTakeOwnershipPrivilege	3692	explorer.exe
Token: SeLoadDriverPrivilege	3692	explorer.exe
Token: SeSystemProfilePrivilege	3692	explorer.exe
Token: SeSystemtimePrivilege	3692	explorer.exe
Token: SeProfSingleProcessPrivilege	3692	explorer.exe
Token: SeIncBasePriorityPrivilege	3692	explorer.exe
Token: SeCreatePagefilePrivilege	3692	explorer.exe
Token: SeBackupPrivilege	3692	explorer.exe
Token: SeRestorePrivilege	3692	explorer.exe
Token: SeShutdownPrivilege	3692	explorer.exe
Token: SeDebugPrivilege	3692	explorer.exe
Token: SeSystemEnvironmentPrivilege	3692	explorer.exe
Token: SeChangeNotifyPrivilege	3692	explorer.exe
Token: SeRemoteShutdownPrivilege	3692	explorer.exe
Token: SeUndockPrivilege	3692	explorer.exe
Token: SeManageVolumePrivilege	3692	explorer.exe
Token: SeImpersonatePrivilege	3692	explorer.exe
Token: SeCreateGlobalPrivilege	3692	explorer.exe
Token: 33	3692	explorer.exe
Token: 34	3692	explorer.exe
Token: 35	3692	explorer.exe
Token: 36	3692	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3692	explorer.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 3780	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	88
PID 3236 wrote to memory of 3780	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	88
PID 3236 wrote to memory of 3780	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	88
PID 3780 wrote to memory of 3284	3780	cmd.exe	90
PID 3780 wrote to memory of 3284	3780	cmd.exe	90
PID 3780 wrote to memory of 3284	3780	cmd.exe	90
PID 3236 wrote to memory of 3048	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	91
PID 3236 wrote to memory of 3048	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	91
PID 3236 wrote to memory of 3048	3236	JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe	91
PID 3048 wrote to memory of 5584	3048	Server.exe	92
PID 3048 wrote to memory of 5584	3048	Server.exe	92
PID 3048 wrote to memory of 5584	3048	Server.exe	92
PID 3048 wrote to memory of 3692	3048	Server.exe	93
PID 3048 wrote to memory of 3692	3048	Server.exe	93
PID 3048 wrote to memory of 3692	3048	Server.exe	93
PID 3048 wrote to memory of 3692	3048	Server.exe	93
PID 3048 wrote to memory of 3692	3048	Server.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7fb215db072c4d8e1a4c03595ae96565.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\7za.exe" "x" "-y" "C:\Users\Admin\AppData\Roaming\Server.7z" "-pSaltyDave""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3780
- - C:\Users\Admin\AppData\Roaming\7za.exe
    "C:\Users\Admin\AppData\Roaming\7za.exe" "x" "-y" "C:\Users\Admin\AppData\Roaming\Server.7z" "-pSaltyDave"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3284
- C:\Users\Admin\AppData\Roaming\Server.exe
  C:\Users\Admin\AppData\Roaming\Server.exe
  2⤵
  - Modifies firewall policy service
  - Windows security bypass
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Windows security modification
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3048
- - C:\Users\Admin\AppData\Local\Temp\RUNESCAPE_PIN_GENERATOR.EXE
    "C:\Users\Admin\AppData\Local\Temp\RUNESCAPE_PIN_GENERATOR.EXE"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5584
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Modifies firewall policy service
    - Windows security bypass
    - Checks BIOS information in registry
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery