Analysis

  • max time kernel
    148s
  • 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
    15/10/2026, 19:20

General

  • Target
    2026-10-13_12f404509495ab11248bd9eff83fc7b9_elex_rhadamanthys_smoke-loader.exe
  • Size 288KB
  • Sample261015-x2jpcscs8l
  • SHA256 eb94651eb894e13b491c50cc56559847382a0904b39b49038c63b70d478d148d
  • 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\2026-10-13_12f404509495ab11248bd9eff83fc7b9_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-13_12f404509495ab11248bd9eff83fc7b9_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:1928

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 341KB
        • SHA256 2a7b8ee2b6adaa25d22ffcd143aa5be8e472f39918ce9fc5add0f64210212ec3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX226C.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX226C.tmp
        • Size 288KB
        • SHA256 2f8fa404d9554fda30030ca32ef7b37947b2d9e57451004274d0238c0fdd2733
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX226D.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX226D.tmp
        • Size 288KB
        • SHA256 d73b6d054fe85b629e6544459d545e3d9d83f7901e4c20d33968dba6e09b99e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX214C.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX214C.tmp
        • Size 288KB
        • SHA256 10961de2b5effad9fe3955e1c37d5d43e4a72e2377647a3904caaeeca6cecfb0
        • MD5 SHA1 SHA512 SSDEEP TLSH