Hi,
Firstly, I would like to share with you the solution of the problem in the OSINT category by leaving the first week of the BattleWare CTF Competition, which is a short-term but fun and at the same time a challenging.
Category: OSINT
If you want to try and solve the questions, I share the link π
Download for βsound_of_silence.wawβ : https://mega.nz/file/0ipWBbRK#_8SU3WJ6sL3BZkEFzS1WrAaeR5XgMqVc5j_C68tyvgw
First of all, when we examine the audio file, we can understand that this audio file containing short and long sounds contains Morse Code. I used the βMorse Code Adaptive Audio Decodeβ application on the Morse Code World site to analyze the sound file.
Morse Code Adaptive Audio Decode : https://morsecode.world/international/decoder/audio-decoder-adaptive.html
Morse Code Analysis:
- . β .- β .. . β β β β β¦ β β β β β .- .. β β -.-. β¦.- -. β β -β¦ β β .-. .. β β β . -. β β .. .-.. -..- β ..-. β .. β . -.- .-.. β .. β β -. β¦.. -..- β . -.- -β¦- -β¦- -β¦-
By converting the analyzed Morse Code into a written language, we obtain our first data. In order to transform the data, we obtain encrypted data using the International Morse application on the same site.
Output:
NQZWOM3OMQ2C4YTBOR2GYZLXMFZGKLT2N5XGK
In order to make meaningful, we are investigating what it is encrypted with.
We try the encryption methods in the βdecodeβ section of βhttps://emn178.github.io/online-tools/base32_decode.htmlβ to decrypt this encrypted data and find that we have been encrypted as Base32.
We see that the decoded data takes us to a link.
Directed sites : http://l3g3nd4.battleware.zone/
We would have solved the question when we reached the site, of course, but I cannot share this image with you because we cannot reach the site when the competition is over.
Thank you for your time π
