Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 22:27

General

  • Target
    2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe
  • Size 42KB
  • Sample240612-2dcy5ashme
  • SHA256 6e34213a61a8124a5ec79db0999b3d5b7bca246f962c3b6e7916a7f01433d7a0
  • 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_9779506656b3362b724d53807351484c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_9779506656b3362b724d53807351484c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3932

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 42KB
        • SHA256 7b7ab6fee1142f79518e79afe4f6418cddef5ebe14e48d57155fbebea0b081cb
        • MD5 SHA1 SHA512 SSDEEP

        memory/3540-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

        memory/3540-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

        memory/3540-8-0x00000000007B0000-0x00000000007B6000-memory.dmp

        memory/3932-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/3932-23-0x00000000004D0000-0x00000000004D6000-memory.dmp