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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	errorResponder.exe

Deletes itself 1 IoCs

pid	Process
2440	errorResponder.exe

Executes dropped EXE 1 IoCs

pid	Process
2440	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-1-5-21-268080393-3149932598-1824759070-1000\Software\Wine	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Wine	errorResponder.exe

Loads dropped DLL 1 IoCs

pid	Process
1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
2440	errorResponder.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe
2440	errorResponder.exe
2440	errorResponder.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 1744 wrote to memory of 2440	1744	a1c86dc81df8c629410fa9970423016e_JaffaCakes118.exe	30
PID 2440 wrote to memory of 900	2440	errorResponder.exe	31
PID 2440 wrote to memory of 900	2440	errorResponder.exe	31
PID 2440 wrote to memory of 900	2440	errorResponder.exe	31
PID 2440 wrote to memory of 900	2440	errorResponder.exe	31

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
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1744
- 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:2440
- - C:\Windows\SysWOW64\secinit.exe
    C:\ProgramData\ErrorResponder\errorResponder.exe
    3⤵
    PID:900

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