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
    21/08/2026, 04:30

General

  • Target
    2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe
  • Size 42KB
  • Sample260821-e5bttaw1a1
  • SHA256 189a009efe394e6bcd6e8534410cd4af739c7d496942e44df1e87841b6c6479b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 2 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\2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4112
    • 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:252

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 42KB
        • SHA256 dbfea338d0ab51d4c4ac7b465b250fcadd41aaa2ef9cec0925d7af10877f7d3c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/252-27-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/252-19-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/252-21-0x0000000002150000-0x0000000002156000-memory.dmp

        memory/252-28-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/4112-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4112-1-0x0000000002120000-0x0000000002126000-memory.dmp

        memory/4112-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/4112-3-0x0000000002140000-0x0000000002146000-memory.dmp

        memory/4112-18-0x0000000008000000-0x0000000008009000-memory.dmp