Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 18:15

General

  • Target
    eedd75da32ee459c0929d760fed205c1651f54af56d7399106164f6942a702c8.exe
  • Size 12.5MB
  • Sample260722-wwdeqa1fla
  • SHA256 eedd75da32ee459c0929d760fed205c1651f54af56d7399106164f6942a702c8
  • 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 (219) 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\eedd75da32ee459c0929d760fed205c1651f54af56d7399106164f6942a702c8.exe
    "C:\Users\Admin\AppData\Local\Temp\eedd75da32ee459c0929d760fed205c1651f54af56d7399106164f6942a702c8.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5924

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-1875162379-3804078649-638427191-1000\desktop.ini.tmp
        • Size 12.5MB
        • SHA256 3f1f542a600745805118a7e616eb10cef31582aabf08ca72daf5d63208eede7c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 12.6MB
        • SHA256 45144ba2d7a404c9ca9d2e0d039e667a7d0030af261e7cdae1ea68b34379abef
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5924-0-0x0000000000400000-0x0000000000407000-memory.dmp

        memory/5924-26-0x0000000000400000-0x0000000000407000-memory.dmp