Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/06/2024, 21:44

General

  • Target
    3887af11226f62875f738318e6da1f32d207196b67ca9ad6ed014aa36ef361d2.exe
  • Size 233KB
  • Sample240613-1lpgfs1elf
  • SHA256 3887af11226f62875f738318e6da1f32d207196b67ca9ad6ed014aa36ef361d2
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Renames multiple (5194) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3887af11226f62875f738318e6da1f32d207196b67ca9ad6ed014aa36ef361d2.exe
    "C:\Users\Admin\AppData\Local\Temp\3887af11226f62875f738318e6da1f32d207196b67ca9ad6ed014aa36ef361d2.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Users\Admin\AppData\Local\Temp\_clist.exe
      "_clist.exe"
      2⤵
      • Executes dropped EXE
      PID:1628
    • C:\Windows\SysWOW64\Zombie.exe
      "C:\Windows\system32\Zombie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:2264

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        desktop.ini.exe

        • Path C:\$Recycle.Bin\S-1-5-21-4124900551-4068476067-3491212533-1000\desktop.ini.exe
        • Size 90KB
        • SHA256 73c50294d80297b267b60c8cbf5a05b1deb24eb23c968693fe14320c4757e584
        • MD5 SHA1 SHA512 SSDEEP

        _clist.exe

        • Path C:\Users\Admin\AppData\Local\Temp\_clist.exe
        • Size 143KB
        • SHA256 fb7fab836f744d669451dcd38aa7d2a9c74c6af893c258d079439b58abce70d8
        • MD5 SHA1 SHA512 SSDEEP

        Zombie.exe

        • Path C:\Windows\SysWOW64\Zombie.exe
        • Size 90KB
        • SHA256 44766dbcd37a6996f37a83990caab45e1e9a4881fe9b66215a0713035ad92be6
        • MD5 SHA1 SHA512 SSDEEP

        memory/1628-20-0x00007FF8010B3000-0x00007FF8010B5000-memory.dmp

        memory/1628-19-0x0000000000800000-0x0000000000828000-memory.dmp