Try using the (archive.org) to see if the page was saved. Or search for the file hash (MD5, SHA1) on torrent indexers. If all else fails, join a Korean movie subreddit (r/Koreanfilm) and politely ask for guidance – but respect rules against piracy.
Given these details, here's a more organized look at what the file might be: buddysmom2015720pwebdlkoreanx264esubka link
The phrase "buddysmom2015720pwebdlkoreanx264esubka" is a file name for a digital video, likely distributed via torrent or file-sharing sites. It identifies a specific version of a movie or TV show with the following characteristics: Buddy's Mom (2015) : The title and release year of the media. The video resolution (1280 x 720 pixels). Try using the (archive
Indicates High Definition (HD) video resolution measuring 1280x720 progressive pixels. buddysmom2015720pwebdlkoreanx264esubka link