Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/09/2026, 02:25

General

  • Target
    0FF1C3 2016-2025/OInstall.exe
  • Size 10.9MB
  • Sample260909-cwtbds1apd
  • SHA256 414155bf11893ec64ba0f4ffb7de92885090845a0761cf8f6743462aa5991d5e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 10 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 9 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 26 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\OInstall.exe
    "C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\OInstall.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Windows\system32\cmd.exe
      "C:\Windows\Sysnative\cmd.exe" /c WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\OInstall.exe"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:5428
      • C:\Windows\System32\Wbem\WMIC.exe
        WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\OInstall.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5664
    • C:\Windows\system32\cmd.exe
      "C:\Windows\Sysnative\cmd.exe" /c WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\files"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2408
      • C:\Windows\System32\Wbem\WMIC.exe
        WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionPath="C:\Users\Admin\AppData\Local\Temp\0FF1C3 2016-2025\files"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2396
    • C:\Windows\system32\cmd.exe
      "C:\Windows\Sysnative\cmd.exe" /D /c C:\Users\Admin\AppData\Local\Temp\0FF1C3~1\files\Setup.exe /configure Configure.xml
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:2952
      • C:\Users\Admin\AppData\Local\Temp\0FF1C3~1\files\setup.exe
        C:\Users\Admin\AppData\Local\Temp\0FF1C3~1\files\Setup.exe /configure Configure.xml
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3304
        • C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe
          OfficeClickToRun.exe scenario=unknown scenariosubtype=odtCDN acceptalleulas="True" cdnbaseurl="http://officecdn.microsoft.com/pr/39168D7E-077B-48E7-872C-B232C3E72675" productreleaseid="none" culture="es-es" baseurl="http://officecdn.microsoft.com/pr/39168D7E-077B-48E7-872C-B232C3E72675" lcid="1033" platform="x64" mediatype="CDN" updatesenabled="True" autoUpgrade="True" standardretail.excludedapps="publisher,groove,onenote,outlook,powerpoint" version="15.0.5603.1000" productstoadd="StandardRetail_es-es_x-none|ProjectStdRetail_es-es_x-none|VisioStdRetail_es-es_x-none"
          4⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5372
          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
            OfficeClickToRun.exe mediatype.15=CDN scenario=unknown scenariosubtype=odtCDN updatesenabled.15=True cdnbaseurl.15=http://officecdn.microsoft.com/pr/39168D7E-077B-48E7-872C-B232C3E72675 acceptalleulas.15=True baseurl.15=http://officecdn.microsoft.com/pr/39168D7E-077B-48E7-872C-B232C3E72675 culture=es-es platform=x64 version.15=15.0.5603.1000 standardretail.excludedapps.15=publisher,groove,onenote,outlook,powerpoint productstoadd=StandardRetail.15_es-es_x-none|ProjectStdRetail.15_es-es_x-none|VisioStdRetail.15_es-es_x-none
            5⤵
            • Drops file in Program Files directory
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of SetWindowsHookEx
            PID:996
    • C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE
      "C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE"
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4844

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        officeclicktorun.exe_Rules.xml

        • Path C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml
        • Size 486KB
        • SHA256 6001fe5d360d9777067845f39ef015b4a7895ecb03d1505c0fc1b12ec59bb040
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Configure.xml

        • Path C:\Users\Admin\AppData\Local\Temp\0FF1C3~1\files\Configure.xml
        • Size 654B
        • SHA256 6118e764d5ee812e17c980d0e70a27b78dd4813f4c7abf3724974ae047f03315
        • MD5 SHA1 SHA512 TLSH

        setup.exe

        • Path C:\Users\Admin\AppData\Local\Temp\0FF1C3~1\files\setup.exe
        • Size 1.1MB
        • SHA256 b4ee34d5143666dcbde830e152263549d54bd00a19402d4c85aa4f5ebddfe4fb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        v64.cab

        • Path C:\Users\Admin\AppData\Local\Temp\OFFICE~1\v64.cab
        • Size 10KB
        • SHA256 5fd2addcd4916f9ca44bbea4fc7ac770a2c5953cdb8fdc359e3e8cf0d9960945
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VersionDescriptor.xml

        • Path C:\Users\Admin\AppData\Local\Temp\OfficeC2RC38DFEBA-0315-46EC-A343-2DC530198569\VersionDescriptor.xml
        • Size 2KB
        • SHA256 7c6713a1e98d9dc266b3ec9d091a9e43725f77848a94ca3745280e3209883df8
        • MD5 SHA1 SHA512 TLSH

        memory/4844-10-0x00007FF8CB7C0000-0x00007FF8CB7D0000-memory.dmp

        memory/4844-9-0x00007FF8CB7C0000-0x00007FF8CB7D0000-memory.dmp

        memory/4844-8-0x00007FF8CB7C0000-0x00007FF8CB7D0000-memory.dmp

        memory/4844-12-0x00007FF8CB7C0000-0x00007FF8CB7D0000-memory.dmp

        memory/4844-17-0x00007FF8C8A90000-0x00007FF8C8AA0000-memory.dmp

        memory/4844-18-0x00007FF8C8A90000-0x00007FF8C8AA0000-memory.dmp

        memory/4844-11-0x00007FF8CB7C0000-0x00007FF8CB7D0000-memory.dmp

        memory/4844-57-0x0000015C39CC0000-0x0000015C39DB0000-memory.dmp

        memory/5032-0-0x0000000000400000-0x000000000199D000-memory.dmp

        memory/5032-31-0x0000000000400000-0x000000000199D000-memory.dmp

        memory/5032-3-0x0000000000400000-0x000000000199D000-memory.dmp

        memory/5032-1-0x000000000199B000-0x000000000199C000-memory.dmp