Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/10/2026, 15:20

General

  • Target
    2026-10-01_49bb5bbca6f7323033272f5b735dec98_elex_wannacry.exe
  • Size 24KB
  • Sample261002-sq83natdja
  • SHA256 18ca4f90fffe9cf3d28dacb39d880ca088377644472c80ae025e477ce0f7174b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 2 IoCs

    Cosmu is a worm written in C++.

  • Renames multiple (4223) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-01_49bb5bbca6f7323033272f5b735dec98_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-01_49bb5bbca6f7323033272f5b735dec98_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3444

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-2251218687-1689653882-3767565116-1000\desktop.ini.tmp
        • Size 24KB
        • SHA256 3993c52786e7f00768304db2f9c9ac1e61a3388b30b2cd7279265ae04520a66b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.chm.tmp

        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 141KB
        • SHA256 47ab4dd27f183edcb837995fd0634084fb45df512449cc784dbf1b6f4b5b391b
        • MD5 SHA1 SHA512 SSDEEP TLSH