/usr/lib/libQtGStreamerUtils-0.10.so is in libqtgstreamer-dev 0.10.1-2ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libQtGStreamerUtils-0.10.so.0
/usr/lib/libQtGStreamerUtils-0.10.so.0