Overview

overview

10

Static

static

10

2026-08-13...er.exe

windows10-2004-x64

10

2026-08-13...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/08/2026, 09:38

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General

  • Target
    2026-08-13_54b2e9d0618568f14c7734145de1d1ab_elex_rhadamanthys_smoke-loader.exe
  • Size 1.5MB
  • Sample260813-ll2dpawfpc
  • SHA256 b55338b8fb4f479c78c7237037ccdb3274c862c1e1d5db82c14f6abd50fc606f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverycosmuworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • Detects Cosmu payload 6 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.

    discovery

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-13_54b2e9d0618568f14c7734145de1d1ab_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-13_54b2e9d0618568f14c7734145de1d1ab_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 325KB
        • SHA256 68dbd2940f6b1ac7cef887b9e3cc4a1bcaf3704a69cdd7eaccb1d4ec260c4ab1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        AppVShNotify.exe
        • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe
        • Size 288KB
        • SHA256 06edd3cb33dd8664f1e0c2f430381599cd70cf8cbc9d669100dff01b1e0a2e67
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX1B04.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX1B04.tmp
        • Size 288KB
        • SHA256 c740c18d022e83d8bd71d90f80c0a3d416904f957fb9ccafc51c6a572f24ae70
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX1F73.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX1F73.tmp
        • Size 288KB
        • SHA256 ba01c38f09c867929dacb9efcdb6d9425986dadf047d9252fcceab384d3b5c22
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        appletviewer.exe
        • Path C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe
        • Size 288KB
        • SHA256 29da82fe612706c818d608576d1e5550a442b325a0360dedbc91e9b28b5c9c04
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 ff06923458cf25478f541fce6c9c4b35f6288a92bb1de795e7bf884eb6a83594
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download