Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/04/2024, 19:24

General

  • Target
    2024-04-29_0aa8f3d855e04c8827a2efcbbd954e45_cryptolocker.exe
  • Size 34KB
  • Sample240429-x4pcmaag62
  • SHA256 0f5532a49b47fa9f478cd42b4f01de2c0b60d2b52af006976100060f6e81736a
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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\2024-04-29_0aa8f3d855e04c8827a2efcbbd954e45_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-29_0aa8f3d855e04c8827a2efcbbd954e45_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      PID:3028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        demka.exe

        • Path C:\Users\Admin\AppData\Local\Temp\demka.exe
        • Size 34KB
        • SHA256 2db56e48f3012468b3e05d38afc26c98ca5de5b2aed5ef1458790e426020dfe4
        • MD5 SHA1 SHA512 SSDEEP

        memory/3028-25-0x0000000002D60000-0x0000000002D66000-memory.dmp

        memory/4896-0-0x0000000000740000-0x0000000000746000-memory.dmp

        memory/4896-1-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4896-8-0x0000000000740000-0x0000000000746000-memory.dmp