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
2724	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

T1082

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

Deletes itself 1 IoCs

pid	Process
1524	cmd.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	t9w7eLEE781llAk.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	t9w7eLEE781llAk.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 108 set thread context of 2292	108	t9w7eLEE781llAk.exe	32
PID 2292 set thread context of 1364	2292	t9w7eLEE781llAk.exe	20
PID 2056 set thread context of 1364	2056	cmd.exe	20

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	cmd.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
2292	t9w7eLEE781llAk.exe
2292	t9w7eLEE781llAk.exe
2724	powershell.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe
2056	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2292	t9w7eLEE781llAk.exe
2292	t9w7eLEE781llAk.exe
2292	t9w7eLEE781llAk.exe
2056	cmd.exe
2056	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	t9w7eLEE781llAk.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2056	cmd.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 2724	108	t9w7eLEE781llAk.exe	29
PID 108 wrote to memory of 2724	108	t9w7eLEE781llAk.exe	29
PID 108 wrote to memory of 2724	108	t9w7eLEE781llAk.exe	29
PID 108 wrote to memory of 2724	108	t9w7eLEE781llAk.exe	29
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 108 wrote to memory of 2292	108	t9w7eLEE781llAk.exe	32
PID 1364 wrote to memory of 2056	1364	Explorer.EXE	33
PID 1364 wrote to memory of 2056	1364	Explorer.EXE	33
PID 1364 wrote to memory of 2056	1364	Explorer.EXE	33
PID 1364 wrote to memory of 2056	1364	Explorer.EXE	33
PID 2056 wrote to memory of 1524	2056	cmd.exe	34
PID 2056 wrote to memory of 1524	2056	cmd.exe	34
PID 2056 wrote to memory of 1524	2056	cmd.exe	34
PID 2056 wrote to memory of 1524	2056	cmd.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- 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
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:108
- - 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:2724
- - 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:2292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:2056
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\t9w7eLEE781llAk.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1524

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

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2