/usr/share/plasma/plasmoids/org.kde.ktp-chat/ is in kde-telepathy-desktop-applets 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/config/
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/config/main.xml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/ActionDelegate.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/ChatWidget.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/ConversationDelegate.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/ConversationDelegateButton.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/FullChatList.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/OutgoingDelegate.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/TextDelegate.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/contents/ui/main.qml
/usr/share/plasma/plasmoids/org.kde.ktp-chat/metadata.desktop