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
    11/06/2024, 02:48

General

  • Target
    2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe
  • Size 37KB
  • Sample240611-dahs7ssckp
  • SHA256 04d79f14b50d46e81daa2665a434c851a8bcfb896267137eb6a19f44fb1a8678
  • 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\2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_22ba8821e3fc83d023d0ee3565f511b2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4640
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:776

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 37KB
        • SHA256 156b31046492066d20672800f3c94dac8c8abb477434216293e63497da645332
        • MD5 SHA1 SHA512 SSDEEP

        memory/776-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/776-18-0x0000000000670000-0x0000000000676000-memory.dmp

        memory/4640-0-0x0000000002060000-0x0000000002066000-memory.dmp

        memory/4640-1-0x0000000002080000-0x0000000002086000-memory.dmp

        memory/4640-8-0x0000000002060000-0x0000000002066000-memory.dmp