Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 04:45

General

  • Target
    2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe
  • Size 81KB
  • Sample260805-fdlelsycnd
  • SHA256 04cb74b1fd02a2cdf1b020b489c4387f9f11124f9b43390e5f0759c8f65ebe01
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 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\2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-05_646a1625adc96290330854fe37faa029_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4976

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 81KB
        • SHA256 b3c8edc311812de5e95f65635bd3c7437e4634b505b09de8a263c02d3529f5f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4140-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4140-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/4140-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

        memory/4140-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4140-4-0x0000000002250000-0x0000000002256000-memory.dmp

        memory/4976-19-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4976-21-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4976-22-0x0000000000740000-0x0000000000746000-memory.dmp