bitrat | 36cfad0772085523235d33687f8d8bdf460bcb468bcc3e885f719d61a99b7019

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS 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\SystemBiosVersion	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c0f1f20287896ff8a866a98497ed8123_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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4296	vbc.exe
4296	vbc.exe
4296	vbc.exe
4296	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1204 set thread context of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109

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	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
Token: SeShutdownPrivilege	4296	vbc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4296	vbc.exe
4296	vbc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 716	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	104
PID 1204 wrote to memory of 716	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	104
PID 1204 wrote to memory of 716	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	104
PID 1204 wrote to memory of 2772	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	107
PID 1204 wrote to memory of 2772	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	107
PID 1204 wrote to memory of 2772	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	107
PID 1204 wrote to memory of 1852	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	108
PID 1204 wrote to memory of 1852	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	108
PID 1204 wrote to memory of 1852	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	108
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109
PID 1204 wrote to memory of 4296	1204	c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe	109

C:\Users\Admin\AppData\Local\Temp\c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c0f1f20287896ff8a866a98497ed8123_JaffaCakes118.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vxfvdSvXkmR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp425E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2772
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:1852
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Scripting

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Scripting

T1064

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2