Analysis

  • max time kernel
    150s
  • 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
    10/09/2026, 01:41

General

  • Target
    2026-09-08_f2d2a9c01b81dd177c3d183aa90ac1c1_cryptolocker_elex.exe
  • Size 31KB
  • Sample260910-b39raacm3x
  • SHA256 7fc8d96bca4bc199ad38d40a42dff5171742771d69b104ff3f5d82dc6dfc35fd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    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\2026-09-08_f2d2a9c01b81dd177c3d183aa90ac1c1_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-08_f2d2a9c01b81dd177c3d183aa90ac1c1_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1860
    • 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:3224

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 32KB
        • SHA256 36ab8c94b08b7ead72d808edb4cb468cd507e0bce0f88d5001566a2d636980fe
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1860-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/1860-1-0x0000000002230000-0x0000000002236000-memory.dmp

        memory/1860-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/1860-3-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/3224-25-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/3224-19-0x0000000002110000-0x0000000002116000-memory.dmp