ardamax | ee5bd58b45da83659a793bb41dbc6b571b7f2cf4b7cfad285a29249b46dd2c54

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	f7bc1683a6630842c59a79f700b9a3f7_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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Exporer32.exe

Executes dropped EXE 3 IoCs

pid	Process
3480	Exporer32.exe
1952	BAYA.exe
1524	wowkeygen.exe

Loads dropped DLL 5 IoCs

pid	Process
3480	Exporer32.exe
1952	BAYA.exe
1524	wowkeygen.exe
1952	BAYA.exe
1952	BAYA.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\BAYA Agent = "C:\\Windows\\SysWOW64\\28463\\BAYA.exe"	BAYA.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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\28463\BAYA.001	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\BAYA.006	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\BAYA.007	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\BAYA.exe	Exporer32.exe
File created	C:\Windows\SysWOW64\28463\AKV.exe	Exporer32.exe
File opened for modification	C:\Windows\SysWOW64\28463	BAYA.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\MSWINSCK.DLL	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Exporer32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BAYA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wowkeygen.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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\{4EE5ADAD-08FD04BD-2430A64D-9ED42830}	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{4EE5ADAD-08FD04BD-2430A64D-9ED42830}\ = 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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{4EE5ADAD-08FD04BD-2430A64D-9ED42830}\ = 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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\{38C89E23-85D2F723-BD1A6900}	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\{38C89E23-85D2F723-BD1A6900}\ = "3998717972"	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{4EE5ADAD-08FD04BD-2430A64D-9ED42830}\ = 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	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1952	BAYA.exe
Token: SeIncBasePriorityPrivilege	1952	BAYA.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3240	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
1524	wowkeygen.exe
1952	BAYA.exe
1952	BAYA.exe
1952	BAYA.exe
1952	BAYA.exe
1952	BAYA.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3240 wrote to memory of 3480	3240	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe	82
PID 3240 wrote to memory of 3480	3240	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe	82
PID 3240 wrote to memory of 3480	3240	f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe	82
PID 3480 wrote to memory of 1952	3480	Exporer32.exe	83
PID 3480 wrote to memory of 1952	3480	Exporer32.exe	83
PID 3480 wrote to memory of 1952	3480	Exporer32.exe	83
PID 3480 wrote to memory of 1524	3480	Exporer32.exe	84
PID 3480 wrote to memory of 1524	3480	Exporer32.exe	84
PID 3480 wrote to memory of 1524	3480	Exporer32.exe	84

C:\Users\Admin\AppData\Local\Temp\f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f7bc1683a6630842c59a79f700b9a3f7_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3240
- 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:3480
- - C:\Windows\SysWOW64\28463\BAYA.exe
    "C:\Windows\system32\28463\BAYA.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:1952
- - C:\Users\Admin\AppData\Local\Temp\wowkeygen.exe
    "C:\Users\Admin\AppData\Local\Temp\wowkeygen.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1524

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