Corrupted File picoCTF Writeup

Magic bytes corruption, hex editing, and a JPEG hiding in plain sight — this is my full walkthrough of the picoCTF 2019 "Corrupted File" forensics challenge. The file command returned just "data." No extension, no hint about the format. I spent roughly 25 minutes confused, trying the wrong tools, before two bytes of hexdump finally made everything click. Here's the complete process, including every dead end. Challenge Overview: picoCTF 2019 "Corrupted File" This challenge is from picoCTF 2019 ,