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, 04:30

General

  • Target
    2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe
  • Size 73KB
  • Sample240613-e5axhsthne
  • SHA256 6dc557e34b201cdf5004edc2dd7b2996b3c97042810d9655286b7b2b82142ae7
  • 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_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_8c3e9dba175791d86071d8af195ace98_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:632

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 74KB
        • SHA256 5a00b2ad442190729e764c50cb90758b93bcc805520fed597ae87af1a87af390
        • MD5 SHA1 SHA512 SSDEEP

        memory/632-17-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/632-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/2520-0-0x0000000002050000-0x0000000002056000-memory.dmp

        memory/2520-1-0x0000000002070000-0x0000000002076000-memory.dmp

        memory/2520-8-0x0000000002050000-0x0000000002056000-memory.dmp