Analysis

  • max time kernel
    148s
  • max time network
    122s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 17:02

General

  • Target
    2026-07-02_97df7bf0d879ac276e147f5fc27f48c6_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260702-vkeyqsfv6l
  • SHA256 c06a556d153928b86d73133c5c44baa92496d4e4bddbe105cede53e04bd83eab
  • 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\2026-07-02_97df7bf0d879ac276e147f5fc27f48c6_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-02_97df7bf0d879ac276e147f5fc27f48c6_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3676

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 322KB
        • SHA256 23ac23a1955be20aad3412f1f219ee98ba24ceb77d913b3093fb032f2749a4e2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX76C.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX76C.tmp
        • Size 284KB
        • SHA256 0f655437d676fd0f44b3b7dd08699e35b8d6435dbccd231bbbf16f92bb5b6328
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX870.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX870.tmp
        • Size 284KB
        • SHA256 a19d3e6682ffae512ff910d74315e56a2bd64c53c05af0fe422d8b8b713ef76f
        • MD5 SHA1 SHA512 SSDEEP TLSH