Analysis

  • max time kernel
    149s
  • max time network
    169s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/05/2026, 07:54

General

  • Target
    2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe
  • Size 48KB
  • Sample260504-jrt6fsev5x
  • SHA256 6155dfff1a176310eb9ad2a67c50d5a26168cbd4b3fd219872f6d6dc7e8c5346
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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\2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-04_fac6cec64508958f72048f1b06ed7165_cryptolocker_elex.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:436
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2216

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 48KB
        • SHA256 592c6280dc1ca3aa9a5f69b124a7cc5ef26e55ba07fa10754da2d417403d210c
        • 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/436-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/436-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

        memory/436-2-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/436-3-0x0000000002220000-0x0000000002226000-memory.dmp

        memory/436-17-0x00000000009C0000-0x0000000000A3B000-memory.dmp

        memory/2216-18-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/2216-21-0x0000000002130000-0x0000000002136000-memory.dmp

        memory/2216-20-0x0000000008000000-0x0000000008009000-memory.dmp

        memory/2216-44-0x0000000000850000-0x00000000008CB000-memory.dmp