%25%36%36%25%36%63%25%36%31%25%36%37%25%37%62%25%33%38%25%36%35%25%36%36%25%36%35%25%36%32%25%33%36%25%33%36%25%36%31%25%33%37%25%33%31%25%33%39%25%36%32%25%33%37%25%33%35%25%36%31%25%33%34%25%36%32%25%33%37%25%36%33%25%33%36%25%33%33%25%33%34%25%36%34%25%33%38%25%33%38%25%33%35%25%33%37%25%33%38%25%33%38%25%36%34%25%36%36%25%36%33%25%37%64

This is URL ecnoded flag, try to decode 2 times


FLAG:

flag{8efeb66a719b75a4b7c634d885788dfc}

Original writeup (https://github.com/zer00d4y/writeups/blob/main/CTF%20events/NahamCon%20CTF/NahamCon%20CTF%202024.md).