Overview

overview

10

Static

static

10

2026-08-04...er.exe

windows10-2004-x64

10

2026-08-04...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    116s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 00:55

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General

  • Target
    2026-08-04_54e2575e4ddecc57572028f2c6bc2f22_elex_rhadamanthys_smoke-loader.exe
  • Size 296KB
  • Sample260805-babc1ssvdw
  • SHA256 9a9654bfc65b05c7fa6a06bdc43d3962235fb68414d8986848c238c8fd425fff
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverycosmuransomwarespywareworm

Malware Config

Signatures

  • Family: Cosmu

    Cosmu is a Windows worm written in C++.

    wormcosmu
  • 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-04_54e2575e4ddecc57572028f2c6bc2f22_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_54e2575e4ddecc57572028f2c6bc2f22_elex_rhadamanthys_smoke-loader.exe"
    1⤵
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    PID:4260

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 ef1790e86565f72ea6ddd52b052036862f1b80c29192a6c7cec411bcf8b3c9d8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX868F.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX868F.tmp
        • Size 288KB
        • SHA256 faf380aa7b435ad682e39b2179fe75ea9a6074001ed7ca6e2cadd183a0df49cc
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX887E.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX887E.tmp
        • Size 288KB
        • SHA256 79a018ec40d0c0e7193b81b2c5ec4cd43765f0d032628df2f0634151f7a21efa
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download