Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/10/2026, 08:15

General

  • Target
    2026-10-12_1d9a2073b19524d853053807f964750d_elex_rhadamanthys_smoke-loader.exe
  • Size 344KB
  • Sample261012-j5rbqact3m
  • SHA256 e12faacf3755bca32bbe27a514b7b7ec29a66db14eed36be3472148e3a39558e
  • 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\2026-10-12_1d9a2073b19524d853053807f964750d_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-12_1d9a2073b19524d853053807f964750d_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5948

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7z.exe

        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 0d22c63557d9f717a477987633526e75dee56c7fdf4f504718fada63a128af1f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX632E.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX632E.tmp
        • Size 284KB
        • SHA256 0316c4459ed7458d07f022848ac8a57f708c5da651f5166796fb0552d85cd168
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX632F.tmp

        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\RCX632F.tmp
        • Size 284KB
        • SHA256 aeeb345a44e450a1ffc33088706160ca8afecf0b4e8d33c66d5ac034e548e85b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX6181.tmp

        • Path C:\Program Files\Google\Chrome\Application\RCX6181.tmp
        • Size 284KB
        • SHA256 6bb3b6e5e912b956a355beac59461b227feace5b59d9807fd1ce761e78fac496
        • MD5 SHA1 SHA512 SSDEEP TLSH