TLDR permalink
CTF IP: 159.89.165.85
Place: 1st
Difficulty: Easy-Medium
Remarks: Very Organized event
Superbowl Star - Steganography permalink
First always check the file type in CTFs.
rize@rizexor:/mnt/c/Users/decod/Downloads$ file Superbowl1.pdf
Superbowl1.pdf: ASCII text, with CRLF line terminators
# since its text lets use cat
rize@rizexor:/mnt/c/Users/decod/Downloads$ cat Superbowl1.pdf
It's just a text file (note that the string below has spaces in between):
_!!__!!_ _!!_!!__ _!!____! _!!__!!! _!!!!_!! _!__!_!! _!!__!_! _!!!_!!_ _!!_!__! _!!_!!!_ _!__!!_! _!!____! _!!_!___ _!!_!!!! _!!_!!_! _!!__!_! _!!!__!! __!!___! __!!___! _!!!!!_!
Initially I thought it was morse code but online tools said it was corrupted but then I noticed the hint said spaces so I counted the _ and ! and found they were all 8 characters and then a space. I did a find and replace in CyberChef and From Binary and viola!