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

T1082

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

Deletes itself 1 IoCs

pid	Process
2056	cmd.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

T1082

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 3 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2456	2780	PO#252020.exe	35
PID 2456 set thread context of 1284	2456	PO#252020.exe	21
PID 2220 set thread context of 1284	2220	cmstp.exe	21

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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
3040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
2260	powershell.exe
2780	PO#252020.exe
2456	PO#252020.exe
2456	PO#252020.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe
2220	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2456	PO#252020.exe
2456	PO#252020.exe
2456	PO#252020.exe
2220	cmstp.exe
2220	cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2780	PO#252020.exe
Token: SeDebugPrivilege	2456	PO#252020.exe
Token: SeDebugPrivilege	2220	cmstp.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2260	2780	PO#252020.exe	30
PID 2780 wrote to memory of 2260	2780	PO#252020.exe	30
PID 2780 wrote to memory of 2260	2780	PO#252020.exe	30
PID 2780 wrote to memory of 2260	2780	PO#252020.exe	30
PID 2780 wrote to memory of 3040	2780	PO#252020.exe	33
PID 2780 wrote to memory of 3040	2780	PO#252020.exe	33
PID 2780 wrote to memory of 3040	2780	PO#252020.exe	33
PID 2780 wrote to memory of 3040	2780	PO#252020.exe	33
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 2780 wrote to memory of 2456	2780	PO#252020.exe	35
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 1284 wrote to memory of 2220	1284	Explorer.EXE	56
PID 2220 wrote to memory of 2056	2220	cmstp.exe	57
PID 2220 wrote to memory of 2056	2220	cmstp.exe	57
PID 2220 wrote to memory of 2056	2220	cmstp.exe	57
PID 2220 wrote to memory of 2056	2220	cmstp.exe	57

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- 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
  - 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:2780
- - 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:2260
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qPkAIiP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC04.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3040
- - 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:2456
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2440
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2068
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:652
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1264
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2100
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:784
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1564
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2452
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2044
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1132
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2372
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1144
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:832
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1248
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:676
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:696
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1728
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1620
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1504
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2216
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2220
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO#252020.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion