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
    12/06/2024, 22:22

General

  • Target
    2024-06-12_21379396c2897e6c26153f9f7f28bbfb_cryptolocker.exe
  • Size 42KB
  • Sample240612-2ad21ssgla
  • SHA256 b295843be049fb57c2519050ddc73f603418b28ebb8ee9d7f416427373aab582
  • 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\2024-06-12_21379396c2897e6c26153f9f7f28bbfb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_21379396c2897e6c26153f9f7f28bbfb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4704

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 42KB
        • SHA256 bf5259138f897a385f4a5bd1688a4c192738f2e01373732d8370a0d25c6df9e8
        • MD5 SHA1 SHA512 SSDEEP

        memory/4704-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

        memory/4704-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

        memory/4896-4-0x00000000006C0000-0x00000000006C6000-memory.dmp

        memory/4896-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

        memory/4896-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/4896-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/4896-0-0x00000000004E0000-0x00000000004E3000-memory.dmp