OSINT — The Foreign Student [TMUCTF]
Tarbiat Modares University has a foreign student. His name is Zedmondo. He has a very shady character. He always walks alone, eats alone, and never talks much. There are some rumors about him. Some people say he is a genius sociopath; some say he is just too self-involved. But one thing is obvious; he has a secret. Once, one of the students heard that he was talking about receiving some important documents via a private email. Maybe if we find his email, we can learn about his secret.
First, we search student of Tarbiat Modares University with name Zedmondo and found Zedmondo Zaberini’s linkedin.
Next, on his linkedin we got github account
Check for all repositories except the forks we found a suspicious repo with name secretkey. Open it and found PGP Public Key on there.
Decrypt the PGP Public Key Block using this solver https://stackoverflow.com/questions/41742974/import-pgp-public-key-block-as-string-working-in-shell-but-not-in-python-gnupg
Run and we got the flag
