formbook | 184cdc94d8c4e4949a004a69559f62e92572dcf066a866386069f93f92f4ff53

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	PO#252020.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	PO#252020.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	PO#252020.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO#252020.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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	PO#252020.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	PO#252020.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	PO#252020.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	PO#252020.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	PO#252020.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1440 set thread context of 2268	1440	PO#252020.exe	103
PID 2268 set thread context of 3392	2268	PO#252020.exe	55
PID 2268 set thread context of 3392	2268	PO#252020.exe	55
PID 2236 set thread context of 3392	2236	ipconfig.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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO#252020.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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

Command and Scripting Interpreter

T1059

pid	Process
2236	ipconfig.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.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
4892	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2952	powershell.exe
2952	powershell.exe
1440	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe
2236	ipconfig.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2268	PO#252020.exe
2236	ipconfig.exe
2236	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	powershell.exe
Token: SeDebugPrivilege	1440	PO#252020.exe
Token: SeDebugPrivilege	2268	PO#252020.exe
Token: SeDebugPrivilege	2236	ipconfig.exe
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE
Token: SeShutdownPrivilege	3392	Explorer.EXE
Token: SeCreatePagefilePrivilege	3392	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3392	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 2952	1440	PO#252020.exe	99
PID 1440 wrote to memory of 2952	1440	PO#252020.exe	99
PID 1440 wrote to memory of 2952	1440	PO#252020.exe	99
PID 1440 wrote to memory of 4892	1440	PO#252020.exe	101
PID 1440 wrote to memory of 4892	1440	PO#252020.exe	101
PID 1440 wrote to memory of 4892	1440	PO#252020.exe	101
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 1440 wrote to memory of 2268	1440	PO#252020.exe	103
PID 3392 wrote to memory of 2236	3392	Explorer.EXE	104
PID 3392 wrote to memory of 2236	3392	Explorer.EXE	104
PID 3392 wrote to memory of 2236	3392	Explorer.EXE	104
PID 2236 wrote to memory of 1192	2236	ipconfig.exe	105
PID 2236 wrote to memory of 1192	2236	ipconfig.exe	105
PID 2236 wrote to memory of 1192	2236	ipconfig.exe	105

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\PO#252020.exe
  "C:\Users\Admin\AppData\Local\Temp\PO#252020.exe"
  2⤵
  - Modifies Windows Defender Real-time Protection settings
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Checks computer location settings
  - Windows security modification
  - 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:1440
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Get-MpPreference -verbose
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2952
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qPkAIiP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDEA.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4892
- - C:\Users\Admin\AppData\Local\Temp\PO#252020.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#252020.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2268
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO#252020.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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