QR Code
Do you remember something known as QR Code? Simple. Here for you :
https://mega.nz/#!eGYlFa5Z!8mbiqg3kosk93qJCP-DBxIilHH2rf7iIVY-kpwyrx-0
Let's download the QR code and use Cyberchef to parse it.
Looks like the output is encrypted using Base64. The ==
at the end give it away.
This looks like a ROT13 encryption.
Flag
CTFlearn{n0_body_f0rget_qr_code}