Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/02/2024, 16:27

General

  • Target

    8f9f707b3c6e7b73b2538812d48bcd99.dll

  • Size

    52KB

  • MD5

    8f9f707b3c6e7b73b2538812d48bcd99

  • SHA1

    e02f86c6147f90dea58d938bd11632c17d2562e6

  • SHA256

    75c3c979f2aac429a3e86259f2492670a94d9d19e27b2b51bacada4c98048bdc

  • SHA512

    0a89329a7b4b16ff3a5d5b205b89901e4ea0511febad07f55cc59ab57cf5478d4237812cf785f2a692352d3d8997357944aa2c590734ff9d956c214553e154e0

  • SSDEEP

    1536:yndHT2uhnwhi1dH41EjjE0snXXjGHE3z42F4:yFnwhiljE0snp3z42F4

Score
6/10

Malware Config

Signatures

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 12 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8f9f707b3c6e7b73b2538812d48bcd99.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\8f9f707b3c6e7b73b2538812d48bcd99.dll
      2⤵
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2532
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 876
        3⤵
        • Program crash
        PID:2336
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2532 -ip 2532
    1⤵
      PID:4860

    Network

          MITRE ATT&CK Enterprise v15

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          Downloads