formbook | 003516e2f71004adc351d3d03f41c642c5f56f9ea1ac4d3369ec51550e69e0f1

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2848	powershell.exe
2624	powershell.exe
824	powershell.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	f92d115c8a7e6a38aade6aad038c49dd_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

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.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

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 1488 set thread context of 1192	1488	RegSvcs.exe	21
PID 1772 set thread context of 1192	1772	raserver.exe	21

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 7 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	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

pid	Process
2664	schtasks.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
2848	powershell.exe
2624	powershell.exe
824	powershell.exe
1488	RegSvcs.exe
1488	RegSvcs.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe
1772	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1488	RegSvcs.exe
1488	RegSvcs.exe
1488	RegSvcs.exe
1772	raserver.exe
1772	raserver.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	824	powershell.exe
Token: SeDebugPrivilege	1488	RegSvcs.exe
Token: SeDebugPrivilege	1772	raserver.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2848	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2848	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2848	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2848	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	31
PID 2384 wrote to memory of 2624	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	34
PID 2384 wrote to memory of 2624	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	34
PID 2384 wrote to memory of 2624	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	34
PID 2384 wrote to memory of 2624	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	34
PID 2384 wrote to memory of 2664	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	35
PID 2384 wrote to memory of 2664	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	35
PID 2384 wrote to memory of 2664	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	35
PID 2384 wrote to memory of 2664	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	35
PID 2384 wrote to memory of 824	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	38
PID 2384 wrote to memory of 824	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	38
PID 2384 wrote to memory of 824	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	38
PID 2384 wrote to memory of 824	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	38
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 2384 wrote to memory of 1488	2384	f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe	40
PID 1192 wrote to memory of 1772	1192	Explorer.EXE	41
PID 1192 wrote to memory of 1772	1192	Explorer.EXE	41
PID 1192 wrote to memory of 1772	1192	Explorer.EXE	41
PID 1192 wrote to memory of 1772	1192	Explorer.EXE	41
PID 1772 wrote to memory of 1120	1772	raserver.exe	42
PID 1772 wrote to memory of 1120	1772	raserver.exe	42
PID 1772 wrote to memory of 1120	1772	raserver.exe	42
PID 1772 wrote to memory of 1120	1772	raserver.exe	42

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f92d115c8a7e6a38aade6aad038c49dd_JaffaCakes118.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2848
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XmlcHWnTkL.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2624
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XmlcHWnTkL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55FC.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2664
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XmlcHWnTkL.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:824
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1488
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion