formbook | 2152a980e864940db36cde90c649f66e7c2da15790e97703a28cb378fb7b5ca6

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
640	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	3a73c9c4a1e78e49f8b0649de5f5f8c5_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	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3a73c9c4a1e78e49f8b0649de5f5f8c5_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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	3a73c9c4a1e78e49f8b0649de5f5f8c5_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3712 set thread context of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3956 set thread context of 3548	3956	RegSvcs.exe	56
PID 3956 set thread context of 3548	3956	RegSvcs.exe	56
PID 872 set thread context of 3548	872	cmstp.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
4560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
640	powershell.exe
3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
640	powershell.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe
872	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3956	RegSvcs.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
3956	RegSvcs.exe
872	cmstp.exe
872	cmstp.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
Token: SeDebugPrivilege	640	powershell.exe
Token: SeDebugPrivilege	3956	RegSvcs.exe
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE
Token: SeShutdownPrivilege	3548	Explorer.EXE
Token: SeCreatePagefilePrivilege	3548	Explorer.EXE
Token: SeDebugPrivilege	872	cmstp.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3548	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 640	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	90
PID 3712 wrote to memory of 640	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	90
PID 3712 wrote to memory of 640	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	90
PID 3712 wrote to memory of 4560	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	92
PID 3712 wrote to memory of 4560	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	92
PID 3712 wrote to memory of 4560	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	92
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3712 wrote to memory of 3956	3712	3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe	93
PID 3956 wrote to memory of 872	3956	RegSvcs.exe	95
PID 3956 wrote to memory of 872	3956	RegSvcs.exe	95
PID 3956 wrote to memory of 872	3956	RegSvcs.exe	95
PID 872 wrote to memory of 592	872	cmstp.exe	96
PID 872 wrote to memory of 592	872	cmstp.exe	96
PID 872 wrote to memory of 592	872	cmstp.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3548
- C:\Users\Admin\AppData\Local\Temp\3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe"
  2⤵
  - 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3712
- - 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\3a73c9c4a1e78e49f8b0649de5f5f8c5_JaffaCakes118.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:640
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mTjykhvEFtZD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5678.tmp"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4560
- - 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
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:872
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        
        PID:592

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

Virtualization/Sandbox Evasion