Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/10/2026, 23:41

General

  • Target
    2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe
  • Size 50KB
  • Sample261004-3prgbsdf96
  • SHA256 dfb3d79b2f356977d0f30bdeb63091fff425f5fec1fdfa4cb8d5e4c20b99adda
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-04_e44f6d14812096f04ae8840a295f9d1a_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5956
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      PID:4040

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        rewok.exe

        • Path C:\Users\Admin\AppData\Local\Temp\rewok.exe
        • Size 51KB
        • SHA256 77c66b477e4f2a440e175eb007d2f11cec76409e2b90f54d270b43b0695df362
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4040-20-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/4040-22-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/4040-23-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/4040-29-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/5956-0-0x0000000000404000-0x0000000000405000-memory.dmp

        memory/5956-1-0x0000000002280000-0x0000000002286000-memory.dmp

        memory/5956-2-0x0000000000400000-0x0000000000408000-memory.dmp

        memory/5956-3-0x0000000000400000-0x0000000000406000-memory.dmp