buer | 4ffe3bdfc6fe67298681315b83cef2513ad95b9b3e3162b9a5e3a27c44f26fe1

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	errorResponder.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	errorResponder.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	errorResponder.exe

Deletes itself 1 IoCs

pid	Process
4856	errorResponder.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	errorResponder.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Wine	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Wine	errorResponder.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
4856	errorResponder.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3848	4100	WerFault.exe	89
2400	4100	WerFault.exe	89

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
4856	errorResponder.exe
4856	errorResponder.exe
4856	errorResponder.exe
4856	errorResponder.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 4856	4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	88
PID 4276 wrote to memory of 4856	4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	88
PID 4276 wrote to memory of 4856	4276	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	88
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89
PID 4856 wrote to memory of 4100	4856	errorResponder.exe	89

C:\Users\Admin\AppData\Local\Temp\a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4276
- C:\ProgramData\ErrorResponder\errorResponder.exe
  C:\ProgramData\ErrorResponder\errorResponder.exe "C:\Users\Admin\AppData\Local\Temp\a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe" ensgJJ
  2⤵
  - Modifies WinLogon for persistence
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Deletes itself
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Windows\SysWOW64\secinit.exe
    C:\ProgramData\ErrorResponder\errorResponder.exe
    3⤵
    PID:4100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 280
      4⤵
      Program crash
      PID:3848
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 288
      4⤵
      Program crash
      PID:2400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4100 -ip 4100
1⤵
PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4100 -ip 4100
1⤵
PID:5036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

3

System Information Discovery

T1082

Virtualization/Sandbox Evasion

2