Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 00:46

General

  • Target
    2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe
  • Size 45KB
  • Sample260727-a4p8latwcv
  • SHA256 c73f1c8768aed3aa6bceb6592827f85c8fd8a9774553259fee59cbf193c69d7e
  • 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).

  • 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\2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-27_8a93903d9aa5fbf02c791bf9b6bd7ce1_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3852
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2676

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 45KB
        • SHA256 b01162c0e4c9580a78e10254767a3c4d958cb806910f1cc8263c74735c6f4158
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2676-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2676-21-0x00000000037F0000-0x00000000037F6000-memory.dmp

        memory/2676-20-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3852-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3852-1-0x0000000002280000-0x0000000002286000-memory.dmp

        memory/3852-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3852-3-0x00000000022B0000-0x00000000022B6000-memory.dmp