buer | 4b2ed73de06d0ca3fc62179593223adf95f7118c542d1c5a8761f0629ef0cad7

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	plugin.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	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	plugin.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	plugin.exe

Deletes itself 1 IoCs

pid	Process
4884	plugin.exe

Executes dropped EXE 1 IoCs

pid	Process
4884	plugin.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-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Wine	plugin.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
4884	plugin.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4040	3060	WerFault.exe	87
4356	4884	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	plugin.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
4884	plugin.exe
4884	plugin.exe
4884	plugin.exe
4884	plugin.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 4884	4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe	84
PID 4564 wrote to memory of 4884	4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe	84
PID 4564 wrote to memory of 4884	4564	6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe	84
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87
PID 4884 wrote to memory of 3060	4884	plugin.exe	87

C:\Users\Admin\AppData\Local\Temp\6eea66a6e9875547c9f9215428141902_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6eea66a6e9875547c9f9215428141902_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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4564
- C:\ProgramData\UBlockPlugin\plugin.exe
  C:\ProgramData\UBlockPlugin\plugin.exe "C:\Users\Admin\AppData\Local\Temp\6eea66a6e9875547c9f9215428141902_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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Windows\SysWOW64\secinit.exe
    C:\ProgramData\UBlockPlugin\plugin.exe
    3⤵
    PID:3060
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 224
      4⤵
      Program crash
      PID:4040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 812
    3⤵
    - Program crash
    PID:4356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3060 -ip 3060
1⤵
PID:4208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4884 -ip 4884
1⤵
PID:4092

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2