Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/11/2026, 01:47

General

  • Target
    2026-11-01_fcd6c8bbf5bc832d5cb30bb4fa11a467_cryptolocker_elex.exe
  • Size 56KB
  • Sample261102-b7m33sgw2p
  • SHA256 5db5b8a6c4f2a886e2f09479d0b787fe2a7344853b22d73d65593d13eb0cf657
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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\2026-11-01_fcd6c8bbf5bc832d5cb30bb4fa11a467_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-01_fcd6c8bbf5bc832d5cb30bb4fa11a467_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3736
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:5620

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 56KB
        • SHA256 2f03cf56258edea858e8170634e3afcbecc77ce515d666d9c3eae5d99a83be58
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3736-0-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3736-1-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3736-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

        memory/3736-3-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3736-4-0x00000000021D0000-0x00000000021D6000-memory.dmp

        memory/5620-20-0x0000000002100000-0x0000000002106000-memory.dmp

        memory/5620-26-0x0000000008000000-0x000000000800A000-memory.dmp