Analysis

  • max time kernel
    148s
  • max time network
    136s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 05:53

General

  • Target
    2026-08-05_7e1e87e49a10712537833b98f661bd32_elex_rhadamanthys_smoke-loader.exe
  • Size 348KB
  • Sample260805-glgbaswwcs
  • SHA256 085bffc10cba3dd3441a20803228f9e8b4a018b997f64f6774b1cdd4d8a9c942
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

  • Detects Cosmu payload 3 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\2026-08-05_7e1e87e49a10712537833b98f661bd32_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-05_7e1e87e49a10712537833b98f661bd32_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:4612

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 476ccbd4b6ece6c99f4c75b45889738cb292b683ab242b9da9fbcf8ddc501373
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXB8CF.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXB8CF.tmp
        • Size 288KB
        • SHA256 a03ac9a446ab6ca7c8f477c2ab39648752e4d3c10a3379031dfef045936a1648
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXBA21.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCXBA21.tmp
        • Size 288KB
        • SHA256 36a33b3d27d54808f8aa47e501d8f01d71ccfe857f3cb4b54f435a0044001cdb
        • MD5 SHA1 SHA512 SSDEEP TLSH