Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    15/08/2026, 03:20

General

  • Target
    2026-08-15_be18bfd8beb90a47c40599cff1291872_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260815-dvtq7sde97
  • SHA256 290ab0e92450e8465fee2af8694dd6aae2e9588e4e4a7ec7c748eee0408b0be2
  • 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\2026-08-15_be18bfd8beb90a47c40599cff1291872_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-15_be18bfd8beb90a47c40599cff1291872_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3476

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 320KB
        • SHA256 640213c67e1a549124c12fe2dcba45bde3dbddbf91fba1a7a3fb498077511143
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3D70.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX3D70.tmp
        • Size 284KB
        • SHA256 f0e04a30be85ae9f3aeddde18805c1f43a61de648cc8401bab7c4b6fd048218f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX3F01.tmp

        • Path C:\Program Files\Java\jdk-1.8\bin\RCX3F01.tmp
        • Size 284KB
        • SHA256 443ff9ec2eb9b105e228fbe45469866456dce79a48f546d39b748f1fe893fd54
        • MD5 SHA1 SHA512 SSDEEP TLSH