CTF No: 2
Hey there. I’m glad you are here.
Today, We have a simple and enjoyable CTF challenge for you to solve.
Let's Try to Slove The Challenge.
Challenge Details:
Topic: Cracking & Cryptography
Flag Format: IHC_CTF{}
Description:
Download the zip file. This is an encrypted file. To find the password, you should watch the video. Password is the movie name of this trailer. All character should be small letter and using space if needed.
CTF Link: https://t.me/ctf_invisiblehc/5
Solution:
The Movie Trailer:
Now, we need to find the movie's name. To do this easily, let's take a screenshot of any scene from the trailer and search it on Google using:
After trying several times, we finally discovered that the movie's name is "Who Am I."
So, the password is "who am i" and we can unzip the zip file.
Upon successfully unzipping the file, we found a cipher text.
Next, let's decrypt the cipher text using CyberChef.
The cipher text was encrypted with Base64, and when we decoded it, we got another cipher text in Hex format.
After decrypting the Hex,
we finally found the flag:
IHC_CTF{CRYP706R4PHY_15_4M4Z1NG}