Syntax

[Banaanhangwagen]

A good start would be playing around with custom mask attack (https://hashcat.net/wiki/doku.php?id=mas...m_charsets), since you know the length and the fact that it is lower/upper/digit or special.

Maybe try your commands first with adding --stdout, check the output and adapt if necessary.

There are enough videos/blogs/write-ups do get you going on that field...