Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    11/05/2026, 10:57

General

  • Target
    2026-05-11_833137080836cb69d009bf152ae7e8fd_cryptolocker_elex.exe
  • Size 45KB
  • Sample260511-m18a8af13s
  • SHA256 e6f19d59e90db9b7bb2bbf6d553dcb0e7a340122467710ef80c4faf5fcf3fce0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    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\2026-05-11_833137080836cb69d009bf152ae7e8fd_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-11_833137080836cb69d009bf152ae7e8fd_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4896
    • 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:2144

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 45KB
        • SHA256 833988a9e66ff10576a5f6a72d24c7ce88ef9b50c68f2ed847ec41ee261161de
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2144-18-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2144-20-0x0000000002320000-0x0000000002326000-memory.dmp

        memory/2144-26-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2144-27-0x0000000002350000-0x00000000023CA000-memory.dmp

        memory/4896-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/4896-1-0x0000000000600000-0x0000000000606000-memory.dmp

        memory/4896-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/4896-3-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

        memory/4896-17-0x0000000002330000-0x00000000023AA000-memory.dmp