ardamax | ce397ff6d45374de3ca73d6e1a7ae4d1dd903ca06ef29c8206ca81032c8e1a25

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	Exporer32.exe

Executes dropped EXE 2 IoCs

pid	Process
3904	Exporer32.exe
1992	GYEQ.exe

Loads dropped DLL 4 IoCs

pid	Process
3904	Exporer32.exe
1992	GYEQ.exe
1992	GYEQ.exe
1992	GYEQ.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\GYEQ Agent = "C:\\Windows\\SysWOW64\\28463\\GYEQ.exe"	GYEQ.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\28463\GYEQ.001	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\GYEQ.006	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\GYEQ.007	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\GYEQ.exe	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\AKV.exe	Exporer32.exe
File opened for modification	C:\Windows\SysWOW64\28463	GYEQ.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 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	GYEQ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Exporer32.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	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1992	GYEQ.exe
Token: SeIncBasePriorityPrivilege	1992	GYEQ.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3580	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
1992	GYEQ.exe
1992	GYEQ.exe
1992	GYEQ.exe
1992	GYEQ.exe
1992	GYEQ.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 3904	3580	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe	89
PID 3580 wrote to memory of 3904	3580	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe	89
PID 3580 wrote to memory of 3904	3580	00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe	89
PID 3904 wrote to memory of 1992	3904	Exporer32.exe	90
PID 3904 wrote to memory of 1992	3904	Exporer32.exe	90
PID 3904 wrote to memory of 1992	3904	Exporer32.exe	90

C:\Users\Admin\AppData\Local\Temp\00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\00bc3e42bad28bd8508e95e67b6f0a90_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
  "C:\Users\Admin\AppData\Local\Temp\Exporer32.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3904
- - C:\Windows\SysWOW64\28463\GYEQ.exe
    "C:\Windows\system32\28463\GYEQ.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1992

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery