Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 12:53

General

  • Target
    2026-08-13_724b8bafe7a19d313dd7c60e9fdb1632_elex_wannacry.exe
  • Size 25KB
  • Sample260813-p45evay1ft
  • SHA256 3be168d94d38a5255bdad4f099a201607fb2898322a3fccfdb9c363ccf06c1ab
  • 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 (4406) 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\2026-08-13_724b8bafe7a19d313dd7c60e9fdb1632_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-13_724b8bafe7a19d313dd7c60e9fdb1632_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1420

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-2246396966-3025826688-3847171515-1000\desktop.ini.tmp
        • Size 25KB
        • SHA256 8d166d27ca0b41a5108cc8db26173c9307144d1e2d0b6ecbb120e28b58f3858e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 124KB
        • SHA256 a24873d152a357f2c7dc443301d6ad2699c0f69bc33dad13447210c1e507d670
        • MD5 SHA1 SHA512 SSDEEP TLSH