Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/09/2026, 14:36

General

  • Target
    2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe
  • Size 34KB
  • Sample260905-ryxtxsed83
  • SHA256 041a58fec7dfe1207aa50b03df9ab861b6c75b1444acda8c32113534eaa8a7c6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 3 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\2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2884

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 34KB
        • SHA256 ff4eaa470e12c26133ce0e0b16ba8b0448ca03baf31f1e9bfe7cf9e22bfd9690
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2884-19-0x0000000002120000-0x0000000002126000-memory.dmp

        memory/2884-25-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/4820-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4820-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

        memory/4820-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/4820-3-0x00000000021C0000-0x00000000021C6000-memory.dmp