The naming structure suggests this file is a deceptive "wrapper." There is no legitimate software or media content that requires a "Downloader.exe" named after a specific person or alias like "sinnistar."
If it is on your system, do not double-click or execute it. sinnistar-cindy-gomez - Downloader.exe
It downloads additional malware, such as info-stealers (to grab passwords/banking data), ransomware, or miners (to use your PC's resources). The naming structure suggests this file is a