Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/10/2026, 17:13

General

  • Target
    2026-10-24_7a188d244020bacc47cdc913bff7cbd7_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample261025-vrvmrs1ybs
  • SHA256 d2af8de74820fc8b4aeb87dd7a7fc2f13f630ee2d4a3ae7ab10cae181a302126
  • 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\2026-10-24_7a188d244020bacc47cdc913bff7cbd7_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-24_7a188d244020bacc47cdc913bff7cbd7_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3340

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 330KB
        • SHA256 c62a43cc979803b2d318a008110948bae6d1acd0645d06bb2833108e8aa8ab82
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9E2.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX9E2.tmp
        • Size 284KB
        • SHA256 32087f8f2a00d05a1eb4a79648cec5a500ce2d9b046264111ab283196995bdba
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.exe

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe
        • Size 1.5MB
        • SHA256 567ba21dab87ec723b681bc89a849c9a5132b49459a9378786d7f843d49e8a7c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX894.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX894.tmp
        • Size 284KB
        • SHA256 5b1bf15ddd2efd569a41dd5775f52c20bbd95da1b6ebc5432c645c3a0679f7f7
        • MD5 SHA1 SHA512 SSDEEP TLSH