/usr/lib/libisccfg.so is in libbind-dev 1:9.8.1.dfsg.P1-4ubuntu0.22.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libisccfg.so.82.0.0
/usr/lib/libisccfg.so.82.0.0