/usr/lib/x86_64-linux-gnu/libncursesada.so is in libncursesada2-dev 5.9.20110404-7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libncursesada.so.2
/usr/lib/x86_64-linux-gnu/libncursesada.so.2