95bf44ad7c1e827f859b2e69838fd936e703546f2b54f60c8acbb1516d93ec1d

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	c7863ca4746b2fae4495bfa6f3162077_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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1692	Exporer32.exe
2556	R00nH4x0l2.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0007000000023456-16.dat	upx
behavioral2/memory/1692-22-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/1692-39-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/2556-40-0x0000000000400000-0x0000000000436000-memory.dmp	upx

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\Windows Load = "C:\\Windows\\system32\\R00nH4x0l2.exe"	Exporer32.exe

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	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\R00nH4x0l2.exe	R00nH4x0l2.exe
File opened for modification	C:\Windows\SysWOW64\Y_MELT.txt	R00nH4x0l2.exe
File opened for modification	C:\Windows\SysWOW64\R00nH4x0l2.exe	Exporer32.exe
File opened for modification	C:\Windows\SysWOW64\Y_MELT.txt	Exporer32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\PCGWIN32.LI4	c7863ca4746b2fae4495bfa6f3162077_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 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	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Exporer32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R00nH4x0l2.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{E844B0BE-681C4B67-0B649277-F0E02467}\ = 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	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\{D50DBC70-EDF2330C-38FF8F7C}	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\{D50DBC70-EDF2330C-38FF8F7C}\ = "24361303"	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{E844B0BE-681C4B67-0B649277-F0E02467}\ = 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	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\{E844B0BE-681C4B67-0B649277-F0E02467}	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\{E844B0BE-681C4B67-0B649277-F0E02467}\ = 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	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4476	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
1692	Exporer32.exe
2556	R00nH4x0l2.exe
2556	R00nH4x0l2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 1692	4476	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe	87
PID 4476 wrote to memory of 1692	4476	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe	87
PID 4476 wrote to memory of 1692	4476	c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe	87
PID 1692 wrote to memory of 2556	1692	Exporer32.exe	88
PID 1692 wrote to memory of 2556	1692	Exporer32.exe	88
PID 1692 wrote to memory of 2556	1692	Exporer32.exe	88

C:\Users\Admin\AppData\Local\Temp\c7863ca4746b2fae4495bfa6f3162077_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c7863ca4746b2fae4495bfa6f3162077_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:4476
- C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
  "C:\Users\Admin\AppData\Local\Temp\Exporer32.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\SysWOW64\R00nH4x0l2.exe
    C:\Windows\system32\R00nH4x0l2.exe
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2556

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