It can be decrypted with the seed_password you posted using Electrum's kdf and cipher, and the result is "This is just a test for AES decryption!", but as an Electrum seed it's meaningless, so I couldn't say where it came from.
btchris managed to decrypt the code which i posted as an example. So basically i need some kind of tutorial to fugure out how to use "electrum kdf and cipher" to decrypt the real code.