darkcomet | 3c6463a88d38ea359e45d7885751c33e0a2204c970ff7e34a1f92c172db2318a

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4616	winupacc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winacc = "C:\\Users\\Admin\\AppData\\Roaming\\Windacc\\winupacc.exe"	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91

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 3 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	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupacc.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	d5c2976d0f15869cb63331808e820baf_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	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeSecurityPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeBackupPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeRestorePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeShutdownPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeDebugPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeUndockPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: 33	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: 34	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: 35	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
Token: 36	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
4616	winupacc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2352 wrote to memory of 2096	2352	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	91
PID 2096 wrote to memory of 4616	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	92
PID 2096 wrote to memory of 4616	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	92
PID 2096 wrote to memory of 4616	2096	d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\d5c2976d0f15869cb63331808e820baf_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2096
- - C:\Users\Admin\AppData\Roaming\Windacc\winupacc.exe
    "C:\Users\Admin\AppData\Roaming\Windacc\winupacc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4616

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

4

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery