Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    28/07/2026, 01:00

General

  • Target
    2026-07-28_fc019fecdc1298310b0d3dac66a75b92_cryptolocker_elex.exe
  • Size 4.6MB
  • Sample260728-bctblsvepg
  • SHA256 7fb2fd8d515f04e5628fe627e1fc376c3372e1969c7ae11c33078369036a366d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detects executables built or packed with MPress PE compressor 1 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\2026-07-28_fc019fecdc1298310b0d3dac66a75b92_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_fc019fecdc1298310b0d3dac66a75b92_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5528
    • 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:3880

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 4.6MB
        • SHA256 7c9e2d66637b02c53e8a17e65187485e9ed63dbf8771cefca4a6034741b267bb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3880-18-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/3880-26-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/3880-20-0x0000000002190000-0x0000000002196000-memory.dmp

        memory/5528-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5528-1-0x0000000002180000-0x0000000002186000-memory.dmp

        memory/5528-8-0x0000000008000000-0x0000000008022000-memory.dmp

        memory/5528-2-0x00000000022C0000-0x00000000022C6000-memory.dmp