Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 01:12

General

  • Target
    2026-08-20_4871e2034c65feff6e81d2011a2dbe91_cryptolocker_elex.exe
  • Size 35KB
  • Sample260820-bk2b7aag52
  • SHA256 c550dbb4cb1a9b3b835d09c9a49a3bdd3305eebc95778822f58dbc5e09fb55df
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 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\2026-08-20_4871e2034c65feff6e81d2011a2dbe91_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_4871e2034c65feff6e81d2011a2dbe91_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5888
    • 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:4800

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 35KB
        • SHA256 7b1bdc088caa30724846cd6ed36ba386bdab95b634b09c31740e21ce2a2ded9b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4800-19-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4800-27-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4800-21-0x0000000002190000-0x0000000002196000-memory.dmp

        memory/5888-0-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5888-1-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5888-2-0x0000000002280000-0x0000000002286000-memory.dmp

        memory/5888-3-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/5888-4-0x0000000003810000-0x0000000003816000-memory.dmp