Mass email campaign with a pinch of targeted spam

Mass email campaign with a pinch of targeted spam

Most mass malicious mailing campaigns are very primitive and hardly diverse, with the content limited to several sentences offering the user to download archives that supposedly contain some urgent bills or unpaid fines. The email messages may contain no signatures or logos, with typos and other errors being fairly common. These mailings may target individual users or large corporations, with no significant differences in message content.



Example of a mass malicious mailing message


Things have started to change recently, though, as spammers began employing techniques that are typical of targeted attacks. In particular, they have been sending emails in the name of real companies, copying the senders’ writing style and signatures.


Customer email with an Easter egg inside


We discovered a noteworthy email message recently. In it, someone posing as a Malaysian prospect and using a fairly odd variety of English, asks the recipient to review some customer requirements and get back with the requested documents. The general format complies with the corporate correspondence standards: there is a logo that belongs to a real company and a signature that features sender details. Overall, the request looks legit, while the linguistic errors easily can be attributed to the sender being a non-native speaker.



The email from the “Malaysian prospect,” with a malicious attachment


The only thing about the email that smells fishy is the sender’s address (newsletter@trade***.com), as “newsletter” is typically used for news, not procurement. Besides, the sender’s domain name is differ ..

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