Medium and hard challenge solutions solved by Team Cartel, 2nd prize winners. My other team member Sachin Samuel is a bitbucket fanboi.
Open executable with Ollydbg
Set appropriate breakpoints
Inspect Memory
Some python scripting
Use the hint Slow scanning television
Play the file to get the flag
ROT13 the string and base64 decode
Check exiftool output
Use MKVToolNix to recon the contents
Extract the hidden audio file
Pane > Add Spectogram > Channel 1
Initial recon of the zip file
Download a CRC32 cracker
Extract flag in the correct order
