I have received these emails today at exactly the same time with the titles:
United service parcels id: 84722
United service parcels id: 01111
From the address: email@example.com
It reads: Dear customer.
The parcel was sent your home address.
And it will arrive within 3 business day.
More information and the tracking number are attached in document below.
© 1994-2011 United Parcel Service of America, Inc.
It had an attachment which appears to be a pdf file with the adobe pdf icon, but windows information states that it is an application of about 37kb is size. The company is called: JbfbreyIn software.
I've done a virus scan and nothing turned up. I'm not expecting any deliveries. Just wanted to know if anyone else ever received something like this?