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
    22/08/2026, 15:38

General

  • Target
    2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe
  • Size 81KB
  • Sample260822-s3bb6ahn8w
  • SHA256 754cff24f54792fec2198fc7bc53af5da19b056ec4399095f16d54ce1fee8655
  • 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\2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-21_496661b8b76dfbdbde5216a598e278c0_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2348
    • 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:6000

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 bed35b207fa85dfcaef9c6d4e0ee968000d397c782f7811bbad37358647890b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2348-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2348-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/2348-2-0x0000000002240000-0x0000000002246000-memory.dmp

        memory/2348-3-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/2348-4-0x0000000002260000-0x0000000002266000-memory.dmp

        memory/6000-19-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/6000-27-0x0000000000500000-0x0000000000510000-memory.dmp