The Trickbot gang have changed delivery methods again today and have reverted to a macro downloading Smoke downloader which in turn downloads the Trickbot Banking trojan and info-stealer. These have arrived at steady intervals throughout the day starting at 9am UK time and continuing until late afternoon. They are now using Namecheap as registrar using privacy protection and hosting and sending emails via AS22439 Perfect International,. I can see why they are using Namecheap & .bid domains which normally cost quite high £££ or $$$ so are out of the normal price range of scammers & malware scumbags. Namecheap have a special offer of £0.34 for first year including free privacy protection. This is an open invite to every criminal on the planet to grab hundreds of domains & use them maliciously.
You can now submit suspicious sites, emails and files via our Submissions system
This example is an email containing the subject of “Your Sage subscription invoice is Due” pretending to come from Sage UK but actually coming from a series of look-a-like domains noreply@sage-invoice***.bid (*** = 1 to 999) with a malicious word doc attachment is today’s spoof of a well-known company, bank or public authority delivering Trickbot banking Trojan
So far I have seen:
- firstname.lastname@example.org 18.104.22.168 sage-invoice349.bid Los Angeles California US AS22439 Perfect International, Inc
- email@example.com 22.214.171.124 sage-invoice353.bid Los Angeles California US AS22439 Perfect International, Inc
- firstname.lastname@example.org 126.96.36.199 sage-invoice303.bid Los Angeles California US AS22439 Perfect International, Inc
- email@example.com 188.8.131.52 sage-invoice133.bid Los Angeles California US AS22439 Perfect International, Inc
- firstname.lastname@example.org 184.108.40.206 sage-invoice328.bid Los Angeles California US AS22439 Perfect International, Inc
I am pretty sure there will be loads of others
From: Sage UK <email@example.com>
Date: Thu 19/04/2018 09:00
Subject: Your Sage subscription invoice is Due
Attachment: IO08784403.doc ( random numbers)
Please find attached your latest Sage Subscription invoice that is due for payment.
Invoice Number IO08782293 Due Date 19 April 2018 Amount 234.44
Payment of this invoice will be taken by Direct Debit in accordance with your agreed terms.
Still need to contact us?
Call us on 0845 111 6666
If you’re an Accountant, please call 0845 111 1111
If you’re a Business Partner, please call 0845 111 7733
The Sage Subscription Team
(C)2018, The Sage Group plc or its licensors. All rights reserved.
Please note: There is no unsubscribe option on this email, as it is a service message, not a marketing communication. This email was sent from an address that cannot accept replies. Please use the contact details above if you need to get in touch with us.
Sage UK 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 or a message sending service that can easily be confused with the genuine organisation in some way. Some days however, like today we do see dozens or even hundreds of fake domains.
This is where the fun begins. This malware doc file downloads from http://220.127.116.11/sg3.exe or http://18.104.22.168/sg3.exe using PowerShell ( VirusTotal) This is Smoke Loader, which in turn downloads the Trickbot binary, but I can’t easily tell from the Anyrun reports exactly where from. ( VirusTotal)
The word doc looks like:
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 Ole embedded objects including the DDE “exploit” / “feature” 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.