/usr/lib/ is in kdepimlibs5-dev 4:4.14.10-1ubuntu7.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/libkontactinterface.so
/usr/lib/gpgmepp/
/usr/lib/libkabc.so
/usr/lib/libkabc_file_core.so
/usr/lib/libkalarmcal.so
/usr/lib/libkblog.so
/usr/lib/libkcal.so
/usr/lib/libkpimidentities.so
/usr/lib/libkpimtextedit.so
/usr/lib/libkcalcore.so
/usr/lib/libkcalutils.so
/usr/lib/gpgmepp/GpgmeppConfig.cmake
/usr/lib/libkmime.so
/usr/lib/cmake/
/usr/lib/cmake/KdepimLibs/
/usr/lib/cmake/KdepimLibs/KDEPimLibsLibraryTargetsWithPrefix-debian.cmake
/usr/lib/cmake/KdepimLibs/KDEPimLibsLibraryTargetsWithPrefix.cmake
/usr/lib/cmake/KdepimLibs/KdepimLibsConfig.cmake
/usr/lib/cmake/KdepimLibs/KdepimLibsConfigVersion.cmake
/usr/lib/gpgmepp/GpgmeppLibraryDepends.cmake
/usr/lib/kde4/
/usr/lib/kde4/akonadi_knut_resource.so
/usr/lib/libakonadi-calendar.so
/usr/lib/libakonadi-contact.so
/usr/lib/libakonadi-kabc.so
/usr/lib/libakonadi-kcal.so
/usr/lib/libakonadi-kde.so
/usr/lib/libakonadi-kmime.so
/usr/lib/libakonadi-notes.so
/usr/lib/libakonadi-socialutils.so
/usr/lib/libakonadi-xml.so
/usr/lib/libgpgme++-pthread.so
/usr/lib/libgpgme++.so
/usr/lib/libkholidays.so
/usr/lib/libkimap.so
/usr/lib/libkldap.so
/usr/lib/libkmbox.so
/usr/lib/libkpimutils.so
/usr/lib/libkresources.so
/usr/lib/libktnef.so
/usr/lib/libkxmlrpcclient.so
/usr/lib/libmailtransport.so
/usr/lib/libmicroblog.so
/usr/lib/libqgpgme.so
/usr/lib/libsyndication.so