a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368

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-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	Install.exe

Executes dropped EXE 2 IoCs

pid	Process
4576	Install.exe
3336	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
2448	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1796	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1796	powershell.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 4576	2556	a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368.exe	87
PID 2556 wrote to memory of 4576	2556	a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368.exe	87
PID 2556 wrote to memory of 4576	2556	a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368.exe	87
PID 4576 wrote to memory of 3336	4576	Install.exe	88
PID 4576 wrote to memory of 3336	4576	Install.exe	88
PID 4576 wrote to memory of 3336	4576	Install.exe	88
PID 3336 wrote to memory of 2536	3336	Install.exe	91
PID 3336 wrote to memory of 2536	3336	Install.exe	91
PID 3336 wrote to memory of 2536	3336	Install.exe	91
PID 3336 wrote to memory of 2896	3336	Install.exe	93
PID 3336 wrote to memory of 2896	3336	Install.exe	93
PID 3336 wrote to memory of 2896	3336	Install.exe	93
PID 2896 wrote to memory of 3692	2896	forfiles.exe	96
PID 2896 wrote to memory of 3692	2896	forfiles.exe	96
PID 2896 wrote to memory of 3692	2896	forfiles.exe	96
PID 2536 wrote to memory of 1264	2536	forfiles.exe	95
PID 2536 wrote to memory of 1264	2536	forfiles.exe	95
PID 2536 wrote to memory of 1264	2536	forfiles.exe	95
PID 1264 wrote to memory of 5080	1264	cmd.exe	98
PID 1264 wrote to memory of 5080	1264	cmd.exe	98
PID 1264 wrote to memory of 5080	1264	cmd.exe	98
PID 3692 wrote to memory of 3564	3692	cmd.exe	97
PID 3692 wrote to memory of 3564	3692	cmd.exe	97
PID 3692 wrote to memory of 3564	3692	cmd.exe	97
PID 1264 wrote to memory of 2208	1264	cmd.exe	99
PID 1264 wrote to memory of 2208	1264	cmd.exe	99
PID 1264 wrote to memory of 2208	1264	cmd.exe	99
PID 3692 wrote to memory of 1232	3692	cmd.exe	100
PID 3692 wrote to memory of 1232	3692	cmd.exe	100
PID 3692 wrote to memory of 1232	3692	cmd.exe	100
PID 3336 wrote to memory of 2448	3336	Install.exe	101
PID 3336 wrote to memory of 2448	3336	Install.exe	101
PID 3336 wrote to memory of 2448	3336	Install.exe	101
PID 3336 wrote to memory of 2932	3336	Install.exe	103
PID 3336 wrote to memory of 2932	3336	Install.exe	103
PID 3336 wrote to memory of 2932	3336	Install.exe	103

C:\Users\Admin\AppData\Local\Temp\a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368.exe
"C:\Users\Admin\AppData\Local\Temp\a96b67d92b927feb54f4b3d37de9af76d4ce3b7dd20df4bb71567b69e2001368.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\7zSF27E.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Users\Admin\AppData\Local\Temp\7zSF397.tmp\Install.exe
    .\Install.exe /TdidYrkHJ "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:3336
  - - 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:2536
    - - 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:1264
      - \??\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:5080
      - \??\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:2208
  - - 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:2896
    - - 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:3692
      - \??\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:3564
      - \??\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:1232
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "ggahGGYnt" /SC once /ST 05:13:51 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:2448
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "ggahGGYnt"
      4⤵
      PID:2932

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
PID:1796

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