/usr/lib/x86_64-linux-gnu/ is in qtmobility-dev 1.2.0-3ubuntu5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libQtServiceFramework.prl
/usr/lib/x86_64-linux-gnu/libQtConnectivity.prl
/usr/lib/x86_64-linux-gnu/libQtLocation.prl
/usr/lib/x86_64-linux-gnu/libQtVersit.prl
/usr/lib/x86_64-linux-gnu/libQtPublishSubscribe.prl
/usr/lib/x86_64-linux-gnu/libQtMultimediaKit.prl
/usr/lib/x86_64-linux-gnu/libQtSensors.prl
/usr/lib/x86_64-linux-gnu/libQtVersitOrganizer.prl
/usr/lib/x86_64-linux-gnu/libQtOrganizer.prl
/usr/lib/x86_64-linux-gnu/libQtSystemInfo.prl
/usr/lib/x86_64-linux-gnu/libQtContacts.prl
/usr/lib/x86_64-linux-gnu/libQtFeedback.prl
/usr/lib/x86_64-linux-gnu/libQtGallery.prl
/usr/lib/x86_64-linux-gnu/libQtPublishSubscribe.so
/usr/lib/x86_64-linux-gnu/libQtGallery.so
/usr/lib/x86_64-linux-gnu/libQtMultimediaKit.so
/usr/lib/x86_64-linux-gnu/libQtVersit.so
/usr/lib/x86_64-linux-gnu/libQtVersitOrganizer.so
/usr/lib/x86_64-linux-gnu/libQtConnectivity.so
/usr/lib/x86_64-linux-gnu/libQtFeedback.so
/usr/lib/x86_64-linux-gnu/libQtOrganizer.so
/usr/lib/x86_64-linux-gnu/libQtSensors.so
/usr/lib/x86_64-linux-gnu/libQtLocation.so
/usr/lib/x86_64-linux-gnu/libQtSystemInfo.so
/usr/lib/x86_64-linux-gnu/libQtServiceFramework.so
/usr/lib/x86_64-linux-gnu/libQtContacts.so