Analysis

  • user interaction
    yes
  • max time kernel
    126s
  • max time network
    123s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 22:09

General

  • Target
    EzExtractSetup.exe
  • Size 4.4MB
  • Sample260705-121vesf12v
  • SHA256 4704846c5605552a2573aeb62f176630fd2ba5498457420c3fb36a27cae6800f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • ConfuserEx .NET packer 1 IoCs

    Detects ConfuserEx .NET packer.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies Control Panel 1 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EzExtractSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\EzExtractSetup.exe"
    1⤵
    • Drops file in Program Files directory
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Program Files (x86)\EzExtractPro\EzExtractProShell32.dll"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2488
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Program Files (x86)\EzExtractPro\EzExtractProShell.dll"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3568
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\EzExtractPro\EzExtractProShell.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2868
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe" "C:\Program Files (x86)\EzExtractPro\EzExtractProApp.exe"
      2⤵
        PID:1368
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5012
      • C:\Program Files (x86)\EzExtractPro\EzExtractProApp.exe
        "C:\Program Files (x86)\EzExtractPro\EzExtractProApp.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies Control Panel
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:5448

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          EzExtractProApp.exe

          • Path C:\Program Files (x86)\EzExtractPro\EzExtractProApp.exe
          • Size 881KB
          • SHA256 554ef8f1d2b201421a53dbbf897fcbea20dbba9d6e8fa881ad0b52be60c11f5e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          EzExtractProCoreDll.dll

          • Path C:\Program Files (x86)\EzExtractPro\EzExtractProCoreDll.dll
          • Size 1.9MB
          • SHA256 6f9b0b8e8d1efbe25b81b0676a5902ec97aac1bfdc84a1a2d1b58659eb44dc5d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          EzExtractProShell.dll

          • Path C:\Program Files (x86)\EzExtractPro\EzExtractProShell.dll
          • Size 167KB
          • SHA256 08ccd848487f570175e3c5b8fa70b04ce30e3afb9f43b4105180e2eb079c85c6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          EzExtractProShell32.dll

          • Path C:\Program Files (x86)\EzExtractPro\EzExtractProShell32.dll
          • Size 126KB
          • SHA256 2d3a1c7e0e6256344648a054bc5526d4804538fef9cc87efab9edb426bf1f4a6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          INetC.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nskF72E.tmp\INetC.dll
          • Size 25KB
          • SHA256 85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9
          • MD5 SHA1 SHA512 SSDEEP TLSH

          NsisPlugin.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nskF72E.tmp\NsisPlugin.dll
          • Size 280KB
          • SHA256 23abc9395b36419700f31b507f13a189ec2eeb70c7e1a1fe9406c2b9e0728298
          • MD5 SHA1 SHA512 SSDEEP TLSH

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nskF72E.tmp\System.dll
          • Size 12KB
          • SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          modern-wizard.bmp

          • Path C:\Users\Admin\AppData\Local\Temp\nskF72E.tmp\modern-wizard.bmp
          • Size 25KB
          • SHA256 3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nskF72E.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/5448-70-0x000000001B600000-0x000000001B746000-memory.dmp

          memory/5448-68-0x00000000006C0000-0x000000000079E000-memory.dmp

          memory/5448-73-0x000000001B3D0000-0x000000001B3D8000-memory.dmp

          memory/5448-74-0x000000001CAB0000-0x000000001CAEE000-memory.dmp

          memory/5448-75-0x000000001C790000-0x000000001C79E000-memory.dmp