This example is an email containing the subject of “You have received a secure document” pretending to come from DocuSign but actually coming from a look-a-like or typo-squatted domain email@example.com with a malicious word doc attachment is today’s latest spoof of a well-known company, bank or public authority delivering Trickbot banking Trojan. It looks like the Trickbot gang are sticking to the theme of imitating well known File Hosting or Mail and Document delivery services this week.
Unlike yesterday’s version where they asked you to download the word doc, today they have gone back to the tried and tested method of attaching a malicious macro enabled word doc to the email.
You can now submit suspicious sites, emails and files via our Submissions system
From: DocuSign <firstname.lastname@example.org>
Date: Thu 22/03/2018 12:09
Subject: You have received a secure document
You have received a secure document via DocuSign. Read your secure message by opening the attachment, 9S659EHDCSI72649DS.doc. You will be prompted to open (view) the file or save (download) it to your computer. For best results, save the file first, then open it. If you have concerns about the validity of this message, please contact the sender directly. For questions about DocuSign’s e-mail encryption service, please contact technical support at 888.764.7941.
Do Not Share This Email
The information contained in this message may be confidential and legally privileged. It is intended only for use of the individual named. If you are not the intended recipient, you are hereby notified that the disclosure, copying, distribution, or taking of any action in regards to the contents of this fax – except its direct delivery to the intended recipient – is strictly prohibited. If you have received this fax in error, please notify the sender immediately and destroy this cover sheet along with its contents, and delete from your system, if applicable..
This message was sent to you using the DocuSign Secure Electronic Encryption Service. If you would rather not receive email from this sender you may contact the sender with your request.
Docusign has not been hacked or had their email or other servers compromised. They are not sending the emails to you. They are just innocent victims in exactly the same way as every recipient of these emails.
What has happened is that the criminals sending these have registered various domains that look like genuine Company, Bank, Government or message sending services. Normally there are between 2 and 4 newly registered domains that imitate Companies House, HMRC, another Government department, a Bank, file hosting service or a message sending service that can easily be confused with the genuine organisation in some way. Some days however we do see dozens or even hundreds of fake domains. Today, they are using 2 domains to send via several different IP addresses but 2 download locations for the Trickbot banking trojan download itself. ( I have only received from docusignemail.com, but I am reliably informed that docusignmail.com is also sending these
Today’s example of the spoofed domain is, as usual, registered via Godaddy as registrar using privacy protection services.
- docusignemail.com hosted on and sending the emails via 188.8.131.52 | 184.108.40.206 | 220.127.116.11 | AS15395 Rackspace Ltd.
- docusignmail.com hosted on & sending via 18.104.22.168 |22.214.171.124 | 126.96.36.199 | Also Rackspace
An alternative download location is http://pcstore.com.ve/morbery.png This domain was also misused by these criminals yesterday as a Trickbot delivery site.
All modern versions of word and other office programs, that is 2010, 2013, 2016 and 365, should open all Microsoft office documents that is Word docs, Excel spreadsheet files and PowerPoint etc that are downloaded from the web or received in an email automatically in “protected view” that stops any embedded malware, macros and DDE “exploit /Feature” and embedded ole objects from being displayed and running. Make sure protected view is set in all office programs to protect you and your company from these sorts of attacks and do not over ride it to edit the document. If the protected mode bar appears when opening the document DO NOT follow the advice they give to enable macros or enable editing to see the content. The document will have a warning message, but you will be safe.
Be aware that there are a lot of other dodgy word docs spreading that WILL infect you with no action from you, if you are still using an out dated or vulnerable version of word. This is a good reason to update your office programs to a recent version and stop using office 2003 and 2007. Many of us have continued to use older versions of word and other office programs, because they are convenient, have the functions and settings we are used to and have never seen a need to update to the latest super-duper version.
The risks in using older version are now seriously outweighing the convenience, benefits and cost of keeping an old version going.
Please read our How to protect yourselves page for simple, sensible advice on how to avoid being infected by this sort of socially engineered malware. Also please read our post about word macro malware and how to avoid being infected by them
I strongly urge you to update your office software to the latest version and stop putting yourself at risk, using old out of date software.