Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 05:48

General

  • Target
    2026-07-22_848d8142250773cc52d75c2039f5c2ea_elex_rhadamanthys_smoke-loader.exe
  • Size 331KB
  • Sample260722-ghqqkaba98
  • SHA256 6aecebe60fd2afe1446d10f43a819c04c6b3b01c33e5e5ecd6d00cbcabe220dc
  • 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\2026-07-22_848d8142250773cc52d75c2039f5c2ea_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-22_848d8142250773cc52d75c2039f5c2ea_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:204

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 328KB
        • SHA256 0c4d36af29724725a3906f8987836b66e519edf7ee93565697fc649ecf32cddc
        • 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 bcaf3750bcca86ac84719e93ba713e91a996a71a1d97d90a60ad4d38e34d18d4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXC01D.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCXC01D.tmp
        • Size 284KB
        • SHA256 5cea38dc050f222bddff705278840b2f90aab1241ec0834bd9f3ae91e53237cd
        • MD5 SHA1 SHA512 SSDEEP TLSH