One of those two sites is distributing adware. Which of them?
File Converter (FOSS) by Adrien Allard was hosted on file-converter[.]org since a decade. Then someone a few weeks ago snatched that domain and it’s now distributing adware. Almost identical design for the page, 100% designed to deceive users to download a different product, as it’s called Zamzar.
legitimate domain changed from .org to .io on 1st feb according to this commit https://github.com/Tichau/FileConverter/commit/0645481801ccb8f46a8e0766e9edac9acf77f468