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
    15/10/2026, 09:13

General

  • Target
    2026-10-13_89d6ee6cce28aa8a613f366fbf287a1f_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample261015-k6whhadb49
  • SHA256 a26c8a1af378ed50463797382c01ad9ad1caad6db3c6c826bb9efa53b787ff6e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 5 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\2026-10-13_89d6ee6cce28aa8a613f366fbf287a1f_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-13_89d6ee6cce28aa8a613f366fbf287a1f_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5712

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 335KB
        • SHA256 048d9b8ea541adc74d6a29929e8cd5089296da62c12cc29ab077393d07661403
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1ACA.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX1ACA.tmp
        • Size 288KB
        • SHA256 a62748d7590bbb480bd04e2efb5a532ff5c9927a9ac139e6f00e063063b69442
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX1ACB.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX1ACB.tmp
        • Size 288KB
        • SHA256 c5617944931d64cfe1af5c5c03e4e1b66e26e6d6f909066e2964f8c321e609bd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX19F9.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX19F9.tmp
        • Size 288KB
        • SHA256 753aa5986df628aa19a730de1ce8e6357884ee20549638d22d4b6b17656f2d20
        • MD5 SHA1 SHA512 SSDEEP TLSH

        crashreporter.exe

        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 0a31462902731fd3d5c924dc01a8324420c28fea73d3647c093a3b04e8719069
        • MD5 SHA1 SHA512 SSDEEP TLSH