Analysis

  • max time kernel
    148s
  • 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
    13/06/2024, 04:27

General

  • Target
    2024-06-13_60e27c45cb09562a54114cd735ea6457_cryptolocker.exe
  • Size 47KB
  • Sample240613-e3gbhsxglk
  • SHA256 2d1f1bcbffd82ad89d775d206a07f3bb0252a69d1e99d0dcd302cffbac8b8736
  • 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_60e27c45cb09562a54114cd735ea6457_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_60e27c45cb09562a54114cd735ea6457_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:636

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 47KB
        • SHA256 de73cae9cfececb88041d5475305baa6fe5343c7e31284c1ac6fa9df447367c1
        • MD5 SHA1 SHA512 SSDEEP

        memory/636-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/636-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/4488-0-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/4488-1-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/4488-2-0x0000000002070000-0x0000000002076000-memory.dmp