Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 17:06

General

  • Target
    2026-08-10_d661e01c461d52ddc38a06e137b2ad2c_elex_wannacry.exe
  • Size 5.0MB
  • Sample260810-vmjppsdn8s
  • SHA256 a5f9520e8ec825a9355d93cadab84d0ad65e708d8a75e96c2545357728ca67b5
  • 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 (297) 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\2026-08-10_d661e01c461d52ddc38a06e137b2ad2c_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-10_d661e01c461d52ddc38a06e137b2ad2c_elex_wannacry.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2672

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-3797332335-34111092-3597280141-1000\desktop.ini.tmp
        • Size 5.0MB
        • SHA256 81f5167616e66024a36a530bce5da90485506f347ad7e9ab7a4b3485665721b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 5.1MB
        • SHA256 f1eb4bdaa049d2db64f511f1cba50e0eab54bc8da7b60ffa9d9f62214ecee818
        • MD5 SHA1 SHA512 SSDEEP TLSH