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Analysis

  • max time kernel
    87s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2025, 18:39

General

  • Target

    krx/krx/avformat-61.dll

  • Size

    502KB

  • MD5

    179f9ae9eb9e05411966a0d943e75360

  • SHA1

    a543163fbea7ba8061da700133cc97e9ebcda589

  • SHA256

    b72292ed8140957752e45880b597b6e1a673fb66e740379d29614dee1454d3a2

  • SHA512

    ca77ce3fb5e345ea6304c9d405de577b164224df01ca25ce1ae560ab82463dfa6b0dacd6880d8d8821b15d3892f8d12bbee76832dee1cfef083b74f127949fc0

  • SSDEEP

    12288:vHoTMfa6+pLH1SicSrISTE6bj3tZEdEyd:vHp0HnHASfyd

Score
3/10

Malware Config

Signatures

  • 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\krx\krx\avformat-61.dll,#1
    1⤵
      PID:2144
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource scheduler
      1⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3728

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/2144-0-0x00007FFB2C720000-0x00007FFB2C7A7000-memory.dmp

      Filesize

      540KB

    • memory/2144-1-0x00007FFB1CE90000-0x00007FFB1D25F000-memory.dmp

      Filesize

      3.8MB

    • memory/2144-3-0x0000000064940000-0x0000000064955000-memory.dmp

      Filesize

      84KB

    • memory/2144-2-0x00007FFB1BD70000-0x00007FFB1CE84000-memory.dmp

      Filesize

      17.1MB