formbook | f567b5072eeb0de2b0c5b921df391ff7ea75996450a39a9eb3202b3eeb33232f

Virtualization/Sandbox Evasion

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	8293cfc29278bb798485c76761a79e84_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

Processes:

powershell.exepowershell.exepowershell.exe

pid	Process
4488	powershell.exe
3456	powershell.exe
5060	powershell.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	8293cfc29278bb798485c76761a79e84_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

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8293cfc29278bb798485c76761a79e84_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

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	8293cfc29278bb798485c76761a79e84_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

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3836 set thread context of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104

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 5 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

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exepowershell.exepowershell.exeschtasks.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

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

Processes:

schtasks.exe

pid	Process
3048	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exe8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe8293cfc29278bb798485c76761a79e84_JaffaCakes118.exepowershell.exe

pid	Process
3456	powershell.exe
3456	powershell.exe
5060	powershell.exe
3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
4528	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
4528	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
4488	powershell.exe
5060	powershell.exe
4488	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exe8293cfc29278bb798485c76761a79e84_JaffaCakes118.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	3456	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
Token: SeDebugPrivilege	4488	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3836 wrote to memory of 3456	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	97
PID 3836 wrote to memory of 3456	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	97
PID 3836 wrote to memory of 3456	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	97
PID 3836 wrote to memory of 5060	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	99
PID 3836 wrote to memory of 5060	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	99
PID 3836 wrote to memory of 5060	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	99
PID 3836 wrote to memory of 3048	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	100
PID 3836 wrote to memory of 3048	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	100
PID 3836 wrote to memory of 3048	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	100
PID 3836 wrote to memory of 4488	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	103
PID 3836 wrote to memory of 4488	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	103
PID 3836 wrote to memory of 4488	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	103
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104
PID 3836 wrote to memory of 4528	3836	8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe	104

C:\Users\Admin\AppData\Local\Temp\8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8293cfc29278bb798485c76761a79e84_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:3836
- 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\8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3456
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pEVQPWunBbZIyo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pEVQPWunBbZIyo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5BD7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3048
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pEVQPWunBbZIyo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4488
- C:\Users\Admin\AppData\Local\Temp\8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8293cfc29278bb798485c76761a79e84_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4528

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion