Potatokkkkkkkkkk.rar

: Using binwalk PotatoKKKKKKKKKK.rar allows you to see if there are other files appended to the end of the archive (a common steganography trick).

: Checking metadata for coordinates or comments using Exiftool . PotatoKKKKKKKKKK.rar

The final stage involves taking the extracted string and converting it into the final flag format: : Using binwalk PotatoKKKKKKKKKK