Somebody obviously caught an eMail virus that is sending mails to and from random addresses. Please do not open the attached .EXE file. And no, it's not me, I cannot do anything about this virus abusing my address.
The mail has the subject "Hi" and the contents "Test =)...". The attached .EXE file has the md5sum e65d7ab639a2361493d388e36d1e663a. Judging from the mail headers, the sender sitting somewhere in València.