CTF Competition

Defcon 33

Las Vegas, NV · 2025

Defcon 33

Lockheed Martin CTF Challenge

CTF challenge pixel map

The challenge gives you a pixel map of colored cubes. Once you identify the correct reading order (left to right, top to bottom), each cube maps to a hex color code. Those hex codes are then decoded byte-by-byte as ASCII characters to reveal the flag. The hex sequence: #414352 #7B5740 #725F30 #706572 #347469 #6F6E24 #5F5031 #616E6E #216E67 #5F5233 #73706F #6E3565 #5F217D Each hex color is 3 bytes (6 hex digits), and each byte = one ASCII character, giving you the flag directly from the decoded string.

Contact

Email: ethanlawson20@outlook.com

LinkedIn: Ethan Lawson | LinkedIn