Overview

overview

10

Static

static

10

2026-08-19...er.exe

windows10-2004-x64

10

2026-08-19...er.exe

windows11-ltsc_2024-x64

10

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
    19/08/2026, 22:50

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General

  • Target
    2026-08-19_5a6beb041d209c2ee502addd6fdbcf20_elex_rhadamanthys_smoke-loader.exe
  • Size 284KB
  • Sample260819-2sl6cabj5x
  • SHA256 563b1a7b3209d44d31ad995f7951f24397bbbe03bc261cc45d5716c744cb1260
  • 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 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.

  • 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\2026-08-19_5a6beb041d209c2ee502addd6fdbcf20_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-19_5a6beb041d209c2ee502addd6fdbcf20_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:2836

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 319KB
        • SHA256 7c9a4ae308d43f4285954cd82b3d8152c973e8e18c0d418e8b93a379c0af2451
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        chrome_pwa_launcher.exe
        • Path C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe
        • Size 1.5MB
        • SHA256 78dfcf6e0c02fff5a1a84832572b6a5489cb5eb6aa5d96f41c11308edee393f4
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX1E4F.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX1E4F.tmp
        • Size 284KB
        • SHA256 275f6854c6d68fdedf95bafe28e10863dec8b27d7a51d8fc0e791b3b3280dabb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX1FC1.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX1FC1.tmp
        • Size 284KB
        • SHA256 9b06356003f61e080a6ab830c72a4707c3c64f584e3ae447e7cc94ceb3f5a359
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download