Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 22:29

General

  • Target
    2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe
  • Size 44KB
  • Sample240612-2edbaaxajm
  • SHA256 7dbe941cbc288e78322bd0d57bf72813f0561ed8b3b815c76829c73a8c7d99eb
  • 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\2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_c6ae187cae9178444f007402fc3d8c90_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3756
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:396

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 45KB
        • SHA256 04610590dd2017be6c604972d386b206918421ba72f5bd9ce1ffc2437a3cd9a6
        • MD5 SHA1 SHA512 SSDEEP

        memory/396-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

        memory/396-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/3756-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

        memory/3756-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

        memory/3756-8-0x00000000020D0000-0x00000000020D6000-memory.dmp