/usr/lib/libpeas-gtk-1.0.so.0 is in libpeas-1.0-0 1.8.1-2ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libpeas-gtk-1.0.so.0.801.0
/usr/lib/libpeas-gtk-1.0.so.0.801.0