Analysis

  • max time kernel
    149s
  • max time network
    114s
  • 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, 10:33

General

  • Target
    0ea01bb81606264efdf1f7f26e211ebd199f6c35db4ade4d5a78077b6a47bb87.exe
  • Size 12.5MB
  • Sample260722-mlzersgm91
  • SHA256 0ea01bb81606264efdf1f7f26e211ebd199f6c35db4ade4d5a78077b6a47bb87
  • 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 (223) 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\0ea01bb81606264efdf1f7f26e211ebd199f6c35db4ade4d5a78077b6a47bb87.exe
    "C:\Users\Admin\AppData\Local\Temp\0ea01bb81606264efdf1f7f26e211ebd199f6c35db4ade4d5a78077b6a47bb87.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3748

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-1738198120-2966725515-3980530802-1000\desktop.ini.tmp
        • Size 12.5MB
        • SHA256 aab810884b287cecd14a2ce08c5c9b03e72b86cb08be86a75eb0d6f8b6c2b2b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7-zip.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip.dll.tmp
        • Size 12.6MB
        • SHA256 e61ff26ce83b9b3e041adeeba061e4b4b1824ced97aa74b6cfa163c50757b7d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3748-0-0x0000000000400000-0x0000000000407000-memory.dmp

        memory/3748-30-0x0000000000400000-0x0000000000407000-memory.dmp