Downloading the binaries from PHP.Net I don't see any libeay32.dll and ssleay32.dll, but in the install.txt it says it is bundled:
php_curl.dll CURL, Client URL library functions Requires: libeay32.dll, ssleay32.dll (bundled)
I have no problems with enabling cURL on my older PHP installation as these files are in there. I'm currently using UWAMP, but it seems the PHP.NET v7.2.7 packages doesn't have these DLLs as well.