Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 00:52

General

  • Target
    2026-08-01_45dd6285a60dcc8f12ad48eb7c43a93a_cryptolocker_elex.exe
  • Size 40KB
  • Sample260802-a77xtaaq9w
  • SHA256 fd5991531d730f6e255d925edd5d4635ae94430d5beb8b61472505c5c23597bc
  • 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\2026-08-01_45dd6285a60dcc8f12ad48eb7c43a93a_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-01_45dd6285a60dcc8f12ad48eb7c43a93a_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4776
    • 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:4168

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 40KB
        • SHA256 4ade60ad462639874a00d3547729da11349ee6991bc771469babf3c0d20ca8ac
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4168-19-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4168-27-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4168-21-0x0000000002170000-0x0000000002176000-memory.dmp

        memory/4776-0-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4776-1-0x0000000000504000-0x0000000000505000-memory.dmp

        memory/4776-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

        memory/4776-9-0x0000000000500000-0x0000000000510000-memory.dmp

        memory/4776-3-0x00000000021F0000-0x00000000021F6000-memory.dmp