Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    19/05/2026, 14:37

General

  • Target
    2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe
  • Size 43KB
  • Sample260519-ry949afs2t
  • SHA256 235966d992491c4fc614427ef3ae93b4a6fb4fb3f68c3c543083b29fe87ea53b
  • 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\2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2080
    • 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:1076

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 43KB
        • SHA256 d50ffce8da7f03cca8be5d86a5996e8a04ac0c5f4009a76ec39b1742e799f775
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1076-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1076-19-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1076-20-0x0000000002340000-0x0000000002346000-memory.dmp

        memory/2080-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/2080-1-0x0000000002E60000-0x0000000002E66000-memory.dmp

        memory/2080-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/2080-3-0x0000000003110000-0x0000000003116000-memory.dmp