The short answer is . Unlike some pirate sites that use the same password for every file (e.g., 123 or www.sitename.com ), 4download.net uses a dynamic system. However, there is a pattern.
Sometimes copying and pasting the password can include an accidental space at the beginning or end. Try typing it out manually in all lowercase. password for 4download.net
You likely copied a download link from a Google search or a forum. Go back to the for that software or game. The short answer is