Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/11/2026, 13:13

General

  • Target
    2026-11-07_0de756fbc87e9014ebe26f59b1eb0b84_elex_rhadamanthys_smoke-loader.exe
  • Size 347KB
  • Sample261109-qf8yssff79
  • SHA256 26c205ebf86931c4102ec1c9178d167534c44e4cc9f16a382688ce80580dbe93
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 4 IoCs

    Cosmu is a worm written in C++.

  • Enumerates connected drives 3 TTPs 10 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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\2026-11-07_0de756fbc87e9014ebe26f59b1eb0b84_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-11-07_0de756fbc87e9014ebe26f59b1eb0b84_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5232

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 3e4f591e2b22860a895437e9a456097c359814697d478f47c1a0dd30f01b56f6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC680.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC680.tmp
        • Size 288KB
        • SHA256 cbef34bbb6fd854cde872a48fb71685023f42bfb337aa875aed9ef38115dc558
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC681.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCXC681.tmp
        • Size 288KB
        • SHA256 09bdc0ab6c564efa178323a79836c4436b22177f2e3aba4f1caff2f19e0ef5b1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC580.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXC580.tmp
        • Size 288KB
        • SHA256 80cf63c43c8693b560c67d5f7d1910d248877f14ff91d25235e1e2b8deb26dee
        • MD5 SHA1 SHA512 SSDEEP TLSH