/usr/lib/libkmindexreader.so.4 is in kdepim-runtime 4:4.8.4-0ubuntu0.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libkmindexreader.so.4.8.0
/usr/lib/libkmindexreader.so.4.8.0