Anon - might be some good stuff in the DoS FOIA reading room. Found a reference for HRC and Kuchma somethin' somethin'.
" I saw the Pinchuk's who send their best….also Mrs. Kuchma"
https://foia.state.gov/Search/Results.aspx?searchText=(Kuchma)%20AND%20()
https://foia.state.gov/Search/Results.aspx?searchText=(Kuchma)%20AND%20()