Analysis

  • max time kernel
    148s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/08/2026, 10:17

General

  • Target
    1901bf3d0f4e51a66ef9fadff5d2719387efab9e670841685d8e4f8eeda4e0e5.exe
  • Size 760KB
  • Sample260809-mbqd4swblc
  • SHA256 1901bf3d0f4e51a66ef9fadff5d2719387efab9e670841685d8e4f8eeda4e0e5
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 4 IoCs

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

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

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

  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1901bf3d0f4e51a66ef9fadff5d2719387efab9e670841685d8e4f8eeda4e0e5.exe
    "C:\Users\Admin\AppData\Local\Temp\1901bf3d0f4e51a66ef9fadff5d2719387efab9e670841685d8e4f8eeda4e0e5.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:4092

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        ExtraDll.dll

        • Path C:\Users\Admin\AppData\Local\Temp\ExtraDll.dll
        • Size 97KB
        • SHA256 48773d597155dc39dd172c26867972da89dd61fcee0d138433eda26a2d8633b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4092-5-0x0000000074C70000-0x0000000074CAC000-memory.dmp

        memory/4092-8-0x0000000074C70000-0x0000000074CAC000-memory.dmp

        memory/4092-19-0x0000000074C70000-0x0000000074CAC000-memory.dmp