Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 11:17

General

  • Target
    2026-10-23_677620f10d77ea7c97b35e84cf90d66a_cryptolocker_elex.exe
  • Size 120KB
  • Sample261023-nds4fsbs8w
  • SHA256 a83cb3d923769355cb89025a206b0921b318aaaabcebd69ad2507e8cb017b148
  • 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).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\2026-10-23_677620f10d77ea7c97b35e84cf90d66a_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-23_677620f10d77ea7c97b35e84cf90d66a_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:5732

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 120KB
        • SHA256 a359922a8bab5e38f981ba368d1f4f8ab26d35d8f0fce74b92e37a2ab8cc4e50
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3864-0-0x0000000002240000-0x0000000002246000-memory.dmp

        memory/3864-1-0x0000000002240000-0x0000000002246000-memory.dmp

        memory/3864-2-0x0000000002270000-0x0000000002276000-memory.dmp

        memory/5732-18-0x0000000002140000-0x0000000002146000-memory.dmp

        memory/5732-19-0x0000000002160000-0x0000000002166000-memory.dmp