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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    08/01/2024, 19:32

General

  • Target

    4c456da64cc8c42447c902256776c9d3.dll

  • Size

    36KB

  • MD5

    4c456da64cc8c42447c902256776c9d3

  • SHA1

    fa5e4896acf232372a782ef8fa931acf2a24eba7

  • SHA256

    bbf4abb0293f2f9920c1ee573abab2fe1453fd8340c516a8f1c09dd9bf752379

  • SHA512

    a889b84eec4e014156fc1076c56ec018ab90c1732ac6ebc8cffedff97d3f2edfe716e640943bfcfbb6ee941678072f2424f4bd65ab18050545450509a1938494

  • SSDEEP

    768:SfZ2YidJN5kXcyXrCD1tDMByGqnxGm3+IdW:SedEcyXrC/GsnsGdW

Score
8/10

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c456da64cc8c42447c902256776c9d3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c456da64cc8c42447c902256776c9d3.dll,#1
      2⤵
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\a.reg
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2556
  • C:\Windows\SysWOW64\regedit.exe
    "regedit.exe" /s "C:\Users\Admin\AppData\Local\Temp\a.reg"
    1⤵
    • Runs .reg file with regedit
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\a.reg

    Filesize

    152B

    MD5

    b100f5324ef74ded0b998e64d07a2e19

    SHA1

    40b0d7f51bf2dd8451f1b723d21355c471a5fa46

    SHA256

    3db613d24a75ae220891698c055e1c580a42e58564f568a0510db87581cc2042

    SHA512

    c12391bb37c334074f7d7e1257b6364fd5cbce848e0a8fe15b8326f54fd9568fe3baec58618c4334027a774a06a08ec249cb71db925c1f85feee6a3d3a816c04