Google search for **gfbbdzua** [found](http://easy-ciphers.com/password) as **password** in **Affine** cipher
The next message uses **Vigenère** cipher with **CTFCERTLEIRIA** key (from previous decoded message) found by [Boxentriq cipher identifier](https://www.boxentriq.com/code-breaking/cipher-identifier)
And the last message can be decoded with **Magic** tool in [CyberChef](https://gchq.github.io/CyberChef) as Base64 with custom dictionary (actually its **ROT13** with normal **Base64**)

Final decoded message contains links to KeePass file and secret

Link with full decode path:
```https://gchq.github.io/CyberChef/#recipe=Affine_Cipher_Decode(7,5)Tail('Nothing%20(separate%20chars)',363)Vigen%C3%A8re_Decode('CTFCERTLEIRIA')Tail('Nothing%20(separate%20chars)',341)ROT13(true,true,false,13)Tail('Nothing%20(separate%20chars)',308)From_Base64('A-Za-z0-9%2B/%3D',true)&input=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```