Malware spam: "Confirmation letter" leads to Locky

Another spam run leading to Locky ransomware..

From:    Mavis Howe [Howe.4267@croestate.com]
Date:    3 August 2016 at 13:32
Subject:    Confirmation letter

Hi [redacted],

I attached the employment confirmation letter I prepared.
Please check it before you send it out.

Best regards

Mavis Howe

The name of the sender varies from email to email. The malicious attachment and payload seem very close to the one described here.