Overview

overview

10

Static

static

10

2026-07-28...er.exe

windows10-2004-x64

10

2026-07-28...er.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/07/2026, 00:23

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General

  • Target
    2026-07-28_c78f74815b29dab2c4ed395826349b87_elex_rhadamanthys_smoke-loader.exe
  • Size 644KB
  • Sample260729-apyanassay
  • SHA256 45d53a44e1aa178e6d5ff46c708dc96ad4ab6ab35ca41000e0d7d37ebe467961
  • 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\2026-07-28_c78f74815b29dab2c4ed395826349b87_elex_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-28_c78f74815b29dab2c4ed395826349b87_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:620

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7z.exe
        • Path C:\Program Files\7-Zip\7z.exe
        • Size 324KB
        • SHA256 fcaa68f50df3ca4f8e86d6b313a776f70353221f755f61a28ce24f449853b0c2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2BEC.tmp
        • Path C:\Program Files\Google\Chrome\Application\RCX2BEC.tmp
        • Size 284KB
        • SHA256 09def6b24c8c18d8e50b2d53536726e0adf6d68033c9eee3d43baf72c5d97709
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        RCX2D3E.tmp
        • Path C:\Program Files\Java\jdk-1.8\bin\RCX2D3E.tmp
        • Size 284KB
        • SHA256 2b8e66530ca32e10b2e59d0239cb377991ebec3fd7b409db90bce0c6ba16577a
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        crashreporter.exe
        • Path C:\Program Files\Mozilla Firefox\crashreporter.exe
        • Size 1.5MB
        • SHA256 0b95254b0577906f7c311fbd6945d779f8b41fa5247ce0685cce0b75f73b69ef
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download