Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 07:16

General

  • Target
    2026-09-08_196f5fe33440bfd3400c723750896bcd_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260910-h3wb8ahn3y
  • SHA256 ce1e87db696377455d6a544114450b7480ff9163a0b20dd0bcfef1580944b754
  • 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\2026-09-08_196f5fe33440bfd3400c723750896bcd_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-08_196f5fe33440bfd3400c723750896bcd_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3340

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 329KB
        • SHA256 a00207ec0f5f6db9c4273d318269ba06df0f346f5840f60cea481ec0a074c0ad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2D63.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX2D63.tmp
        • Size 284KB
        • SHA256 dde310f99429237986ec2f4ddeba619e8fdc2ee1ead88a4dfc0e6e19781f41e3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX2ED4.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2ED4.tmp
        • Size 284KB
        • SHA256 405c32c018682c0eaf0fbf64d8a196ce76acbefcffb2acefe8329a4edb15bac2
        • MD5 SHA1 SHA512 SSDEEP TLSH