The download link is leeched correctly, it is this:
Code:
https://uploadgig.com/file/download/1107e3710Acc67d3/%ED%9B%84%EB%A0%88%EC%A7%80%EC%95%84.avi
It's 100% the same in HTML source, what you show in the screenshot is just how the browser (Firefox, Chrome, Opera, etc.) is showing the link in tool-tip, they are decoding those characters automatically, they are not like this in HTML, HTML has them encoded since that's how it should be (that's how websites work).
The link is leeched correctly, if you post that link to any new website the tool-tip in browser will be the same (with Korean characters).