n00bCTF 2016 Write up - MATRIX

Description : n00b was captured by the enemy. Forced to reveal the flag, he disclosed this string:

Here is the string
Can you find the flag?

Point : 40

When we open the link, it will display a strings.

First thing that I do was decode it in Base 64, but no luck. After staring at the strings I found something that suspicious, it is letter 'g'. It just repeated constantly after 6 characters.

Then I seperate the letter 'g' using this site. Then I found that It have 32 words. According to the challenge name, MATRIX, so i think that we need to read it column by column, not row by row. If we read row by row, we can get 32 strings, but if we read column by column we get 6 strings. 1 string have 32 characters? Have something in your mind? Yeah MD5!

So i just make a php script to seperate it column by column.

And got the strings. Then decrypt the MD5-hash or just google it. You will get :