c4ptur3-th3-fl4g

This is a write-up for the TryHackMe room located at: https://tryhackme.com/room/c4ptur3th3fl4garrow-up-right

Task 1: Translation & Shifting

c4n y0u c4p7u23 7h3 f149?

This seems to be in leetspeak format. I manually was able to convert it, but you can use a website such as this onearrow-up-right to decode it. I then got the flag:

This seems to be in binary format. I looked for a binary to ascii converter online.

To me, this seemed to be Base32 or Base64. I tried Base64 and it did not work. I then tried Base32, I then got the flag:

For this one, the last two characters "==" led me to believe that this was Base64, and this led me to get the flag:

To me, my first thought was this could be hex because of the "3f" at the end. My intuition was correct, and I got the flag:

For this, I tried ROT13, and got it on the first run:

For this one, I used this writeuparrow-up-right to get help for it and found out it was rot47:

This seemed to be morse code for me. It was!:

For this CTF, I assumed that this would be ASCII because of the numbers above 100. I got the flag after I entered this into an online decoder:

For this one, I got some help from this writeuparrow-up-right. This one had multiple ciphers in it.

  1. Base64

  2. Morse Code

  3. Binary to ascii

  4. ROT47

  5. ASCII (or BCD) to text

This led me to the answer:

Task 2: Spectrograms

The hint for this message was Audacity. I then downloaded Audacity, and then got the flag:

The way to get the message was to click on the arrow next to the .wav file and then clicking on spectrogram.

Task 3: Steganography

For this problem, I did get stuck and used a hint from herearrow-up-right. I then typed in the command:

It then asked me for a password. I just pressed ENTER and then it allowed me to get a file that had a flag in it:

Task 4: Security through obscurity

The image by itself shows this:

I then used the following command to find a couple files:

This led me to find these files:

That eventually did not lead me anywhere. HOWEVER, when I ran the strings command on the file, I got the answers needed for the CTF:

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