Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    08/08/2026, 08:54

General

  • Target
    2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe
  • Size 33KB
  • Sample260808-ktwbzaxtct
  • SHA256 3bfa42aeabdcfaaeef0b2b9e948f0433e9c8ee27a2d6eca4d796f5f87f087482
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_61c0413e4302a242f5d4788455f18878_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5576
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3924

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        pissa.exe

        • Path C:\Users\Admin\AppData\Local\Temp\pissa.exe
        • Size 33KB
        • SHA256 e39015d5198e7d3758afaecad7287235f2ac633ddcc9710dc475c3242076315e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pissec.exe

        • Path C:\Users\Admin\AppData\Local\Temp\pissec.exe
        • Size 114B
        • SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
        • MD5 SHA1 SHA512 TLSH

        memory/3924-17-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/3924-19-0x0000000003010000-0x0000000003016000-memory.dmp

        memory/3924-25-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/5576-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/5576-1-0x0000000002350000-0x0000000002356000-memory.dmp

        memory/5576-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/5576-3-0x0000000003150000-0x0000000003156000-memory.dmp