formbook | 5309bd66ae8e9862db4fc8c7221e69b4fab0d4acfc27ad60f8b79b56626ea2d5

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	t9w7eLEE781llAk.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
2252	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	t9w7eLEE781llAk.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	t9w7eLEE781llAk.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	t9w7eLEE781llAk.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	t9w7eLEE781llAk.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	t9w7eLEE781llAk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	t9w7eLEE781llAk.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 216 set thread context of 2060	216	t9w7eLEE781llAk.exe	94
PID 2060 set thread context of 3320	2060	t9w7eLEE781llAk.exe	55
PID 3196 set thread context of 3320	3196	systray.exe	55

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 4 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	t9w7eLEE781llAk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
2252	powershell.exe
216	t9w7eLEE781llAk.exe
216	t9w7eLEE781llAk.exe
2060	t9w7eLEE781llAk.exe
2060	t9w7eLEE781llAk.exe
2252	powershell.exe
2060	t9w7eLEE781llAk.exe
2060	t9w7eLEE781llAk.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe
3196	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2060	t9w7eLEE781llAk.exe
2060	t9w7eLEE781llAk.exe
2060	t9w7eLEE781llAk.exe
3196	systray.exe
3196	systray.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	powershell.exe
Token: SeDebugPrivilege	216	t9w7eLEE781llAk.exe
Token: SeDebugPrivilege	2060	t9w7eLEE781llAk.exe
Token: SeDebugPrivilege	3196	systray.exe
Token: SeShutdownPrivilege	3320	Explorer.EXE
Token: SeCreatePagefilePrivilege	3320	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 2252	216	t9w7eLEE781llAk.exe	91
PID 216 wrote to memory of 2252	216	t9w7eLEE781llAk.exe	91
PID 216 wrote to memory of 2252	216	t9w7eLEE781llAk.exe	91
PID 216 wrote to memory of 2016	216	t9w7eLEE781llAk.exe	93
PID 216 wrote to memory of 2016	216	t9w7eLEE781llAk.exe	93
PID 216 wrote to memory of 2016	216	t9w7eLEE781llAk.exe	93
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 216 wrote to memory of 2060	216	t9w7eLEE781llAk.exe	94
PID 3320 wrote to memory of 3196	3320	Explorer.EXE	95
PID 3320 wrote to memory of 3196	3320	Explorer.EXE	95
PID 3320 wrote to memory of 3196	3320	Explorer.EXE	95
PID 3196 wrote to memory of 3312	3196	systray.exe	96
PID 3196 wrote to memory of 3312	3196	systray.exe	96
PID 3196 wrote to memory of 3312	3196	systray.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe
  "C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:216
- - 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\t9w7eLEE781llAk.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2252
- - C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe
    "C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe"
    3⤵
    PID:2016
- - C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe
    "C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2060
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:3196
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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