/usr/lib/x86_64-linux-gnu/libminiupnpc.so is in libminiupnpc-dev 1.9.20140610-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libminiupnpc.so.10
/usr/lib/x86_64-linux-gnu/libminiupnpc.so.10