9a55005ab12529cde78752fd23476d0440d31247449ec86999b554f08f9b8469

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-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	Install.exe

Executes dropped EXE 2 IoCs

pid	Process
4804	Install.exe
1084	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
1080	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
5032	powershell.EXE
5032	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	powershell.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 4804	4304	setup.exe	87
PID 4304 wrote to memory of 4804	4304	setup.exe	87
PID 4304 wrote to memory of 4804	4304	setup.exe	87
PID 4804 wrote to memory of 1084	4804	Install.exe	89
PID 4804 wrote to memory of 1084	4804	Install.exe	89
PID 4804 wrote to memory of 1084	4804	Install.exe	89
PID 1084 wrote to memory of 2716	1084	Install.exe	94
PID 1084 wrote to memory of 2716	1084	Install.exe	94
PID 1084 wrote to memory of 2716	1084	Install.exe	94
PID 1084 wrote to memory of 1936	1084	Install.exe	96
PID 1084 wrote to memory of 1936	1084	Install.exe	96
PID 1084 wrote to memory of 1936	1084	Install.exe	96
PID 2716 wrote to memory of 1944	2716	forfiles.exe	98
PID 2716 wrote to memory of 1944	2716	forfiles.exe	98
PID 2716 wrote to memory of 1944	2716	forfiles.exe	98
PID 1936 wrote to memory of 3636	1936	forfiles.exe	99
PID 1936 wrote to memory of 3636	1936	forfiles.exe	99
PID 1936 wrote to memory of 3636	1936	forfiles.exe	99
PID 1944 wrote to memory of 2980	1944	cmd.exe	101
PID 1944 wrote to memory of 2980	1944	cmd.exe	101
PID 1944 wrote to memory of 2980	1944	cmd.exe	101
PID 3636 wrote to memory of 4092	3636	cmd.exe	100
PID 3636 wrote to memory of 4092	3636	cmd.exe	100
PID 3636 wrote to memory of 4092	3636	cmd.exe	100
PID 1944 wrote to memory of 4992	1944	cmd.exe	104
PID 1944 wrote to memory of 4992	1944	cmd.exe	104
PID 1944 wrote to memory of 4992	1944	cmd.exe	104
PID 3636 wrote to memory of 2388	3636	cmd.exe	102
PID 3636 wrote to memory of 2388	3636	cmd.exe	102
PID 3636 wrote to memory of 2388	3636	cmd.exe	102
PID 1084 wrote to memory of 1080	1084	Install.exe	105
PID 1084 wrote to memory of 1080	1084	Install.exe	105
PID 1084 wrote to memory of 1080	1084	Install.exe	105
PID 1084 wrote to memory of 4152	1084	Install.exe	107
PID 1084 wrote to memory of 4152	1084	Install.exe	107
PID 1084 wrote to memory of 4152	1084	Install.exe	107

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\7zS8B0A.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4804
- - C:\Users\Admin\AppData\Local\Temp\7zS8C81.tmp\Install.exe
    .\Install.exe /GKFdidhT "385118" /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:1084
  - - 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:2716
    - - 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:1944
      - \??\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:2980
      - \??\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:4992
  - - 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:1936
    - - 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:3636
      - \??\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:4092
      - \??\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:2388
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gsyXpPNPd" /SC once /ST 08:21:31 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:1080
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gsyXpPNPd"
      4⤵
      PID:4152

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:5032

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