darkcomet | d7a32e00a4a2895785e3b0cfcdd6c161bb2c40f4926ac3d6eafa1d01ae4ca134

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\winupdate.exe"	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\winupdate.exe"	notepad.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\winupdate.exe	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
File opened for modification	C:\Windows\winupdate.exe	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
File opened for modification	C:\Windows\winupdate.exe	notepad.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3816	1856	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 4 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	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeSecurityPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeBackupPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeRestorePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeShutdownPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeDebugPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeUndockPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: 33	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: 34	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: 35	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
Token: 36	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83
PID 1856 wrote to memory of 3612	1856	c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c4f2da47d8992ed91bc2e9f844b4a632_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in Windows directory
- 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:1856
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 872
  2⤵
  - Program crash
  PID:3816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1856 -ip 1856
1⤵
PID:2244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery