/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/ is in libapache2-mod-perl2 2.0.10-2ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Base64.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Brigade.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Bucket.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/BucketAlloc.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/BucketType.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Const.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Date.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Error.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Finfo.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/IpSubnet.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/OS.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/PerlIO.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Pool.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/SockAddr.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Socket.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Status.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/String.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Table.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/ThreadMutex.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/ThreadRWLock.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/URI.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/UUID.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/Util.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/APR/XSLoader.pm