Analysis

  • max time kernel
    150s
  • 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, 03:36

General

  • Target
    2024-06-13_702c1f8048c3e11b74557b115d715f2f_cryptolocker.exe
  • Size 39KB
  • Sample240613-d6c8lashlc
  • SHA256 ea0051264abbe75be3b04428243da23ae5c537c63b55913ddbe00e92511d774b
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-13_702c1f8048c3e11b74557b115d715f2f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_702c1f8048c3e11b74557b115d715f2f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1008

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 39KB
        • SHA256 2c59fb3ad8b18c61c0b6a7d66bbb72bf40a370864085509acb110186659204a8
        • MD5 SHA1 SHA512 SSDEEP

        memory/372-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/372-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

        memory/372-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/1008-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/1008-23-0x00000000004D0000-0x00000000004D6000-memory.dmp