Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/07/2026, 07:23

General

  • Target
    2026-07-20_ef9454b8a66cf84ca59495481ecf6a0c_cryptolocker_elex.exe
  • Size 52KB
  • Sample260720-h738macw5v
  • SHA256 bfa92fb2401b8ce22ea5a23a3290311bd309fefcbd69b377cf400778db7d0e64
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-20_ef9454b8a66cf84ca59495481ecf6a0c_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-20_ef9454b8a66cf84ca59495481ecf6a0c_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4372
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3360

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hurok.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
        • Size 53KB
        • SHA256 6e2cc0e771f35983599248c8891af2514b7a18b1c8c2ee4f1dd082cc0e4ca771
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3360-26-0x0000000002070000-0x0000000002076000-memory.dmp

        memory/4372-0-0x00000000021A0000-0x00000000021A6000-memory.dmp

        memory/4372-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

        memory/4372-2-0x0000000000400000-0x0000000000406000-memory.dmp