Continuing with the never ending series of malware downloaders is an email with the subject of send quotation coming from Elsayed Yusuf < firstname.lastname@example.org > ( It is highly likely that the Sender name will be different in other versions of this). This delivers Formbook Trojan
The most interesting thing about this malware campaign is the VBS file inside the zip. This one is a massive 1.5 MB ( 1582247 bytes ) and contains the Formbook Trojan executable embedded inside it in a base64 format. ( Most mass spammed malware VBS files act as downloaders not droppers and tend to be very small in the region of between 1kb and 50kb or so, to cut down on server costs and bandwith )
As well as attaching the zip file the image in the body of the email that says it is an attachment is a link to download the malware file, just in case your Mailserver strips attachments so you can download it yourself. https://dl7.volafile.org/redir/get/v-MvuHbYOq0g
They use email addresses and subjects that will entice a user to read the email and open the attachment. A very high proportion are being targeted at small and medium size businesses, with the hope of getting a better response than they do from consumers.
You can now submit suspicious sites, emails and files via our Submissions system
Remember many email clients, especially on a mobile phone or tablet, only show the Name in the From: and not the bit in <domain.com >. That is why these scams and phishes work so well.
This is another one of the files that unless you have “show known file extensions enabled“, can easily be mistaken for a genuine DOC / PDF / JPG or other common file instead of the .EXE / .JS file it really is, so making it much more likely for you to accidentally open it and be infected.
This drops data.exe | VirusTotal | Hybrid Analysis | Anyrun Beta | VirusBay | NOTE: I am having serious problems getting VirusTotal to scan this data.exe file. Regardless which browser I use, the system starts scanning, starts to show detections and then continues scanning for much, much longer than normal. It then gives a final 0/0 detection rate and fails to actually save or display the file hash on a search. I have tried using both old and new VT interfaces, so I have absolutely no idea what is wrong. It gets to 24/67 before it all goes pear shaped
Update: now fixed by VirusTotal
One of the emails looks like:
From: Elsayed Yusuf <email@example.com>
Date: Thu 01/09/2016 19:22
Subject: send quotation
Please it’s festive season and it’s urgent, kindly look into this issue here, A friend of mine introduced you to me, regarding the last job you did for him. I tried to reach you by phone call earlier today but it’s not connecting, Please arrange Quotation as per attached requested.
Romagnoli Rondinella Srl
Via Bore Chienti scn
62015 Monte San Giusto (MC)
- +39 0733 53541
P Please consider the environment before printing this e-mail.
Le informazioni contenute nella presente comunicazione e i relativi allegati possono essere riservate e sono comunque destinate esclusivamente alle persone o alla Società sopraindicati. La diffusione, distribuzione e/o copiatura del documento trasmesso da parte di qualsiasi soggetto diverso dal destinatario è proibita, sia ai sensi dell’art. 616 c.p., che ai sensi del D.lgs. n. 196/2003.
This message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, forwarding, or copying of this communication is strictly prohibited.
|184.108.40.206||mail.winsgates.xyz||Dronten||Flevoland||NL||AS50673 Serverius Holding B.V.|
|220.127.116.11||Clarks Summit||Pennsylvania||US||AS46664 VolumeDrive|
Received: from mail.winsgates.xyz ([18.104.22.168]:51972 helo=control.yourdomain.com)
by knight.knighthosting.co.uk with esmtp (Exim 4.89_1)
for firstname.lastname@example.org; Sat, 06 Jan 2018 00:01:40 +0000
Received: from [22.214.171.124] (unknown [126.96.36.199])
by control.yourdomain.com (Postfix) with ESMTPA id AECB02C1BD0
for <email@example.com>; Sat, 6 Jan 2018 00:01:40 +0100 (CET)
Content-Type: multipart/mixed; boundary=”===============1889491530==”
Subject: send quotation
From: “Elsayed Yusuf” <firstname.lastname@example.org>
Date: Fri, 05 Jan 2018 19:01:42 -0500
A domain lookup shows winsgates.xyz registered on 1 June 2017 via Godaddy. Hosted on 188.8.131.52 Which is owned” by deltahost.com.ua but actually based in Netherlands
XYZ domains are used in an extremely high rate of spam and malware campaigns. It is highly recommended to block ALL XYZ domains.
I am assuming the registrants details as listed are fake.
Domain Name: WINSGATES.XYZ
Registry Domain ID: D48231395-CNIC
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: https://www.godaddy.com/
Updated Date: 2017-07-26T13:48:41.0Z
Creation Date: 2017-06-01T15:23:57.0Z
Registry Expiry Date: 2018-06-01T23:59:59.0Z
Registrar: Go Daddy, LLC
Registrar IANA ID: 146
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Registry Registrant ID: C135380467-CNIC
Registrant Name: Chucks Hudson
Registrant Street: 108 sutter st
Registrant City: San Francisco
Registrant State/Province: California
Registrant Postal Code: 92165
Registrant Country: US
Registrant Phone: +1.9894228794
Registrant Fax: +1.4805058844
Registrant Email: email@example.com
Registry Admin ID: C135380474-CNIC
All these malicious emails are either designed to steal your Passwords, Bank, PayPal or other financial details along with your email or FTP ( web space) log in credentials. Or they are Ransomware versions that encrypt your files and demand large sums of money to recover the files.All the alleged senders, amounts, reference numbers, Bank codes, companies, names of employees, employee positions, email addresses and phone numbers mentioned in the emails are all random. Some of these companies will exist and some won’t. Don’t try to respond by phone or email, all you will do is end up with an innocent person or company who have had their details spoofed and picked at random from a long list that the bad guys have previously found.
The bad guys choose companies, Government departments and organisations with subjects that are designed to entice you or alarm you into blindly opening the attachment or clicking the link in the email to see what is happening.
There are frequently dozens or even hundreds of different download locations, sometimes delivering the exactly same malware from all locations and sometimes slightly different malware versions from each one. Dridex, Locky and many other malwares do update at frequent intervals during the day, sometimes as quickly as every hour, so you might get a different version of these nasty Ransomware or Banking password stealer Trojans to the version we list here.
Be very careful with email attachments. All of these emails use Social engineering tricks to persuade you to open the attachments that come with the email. Whether it is a message saying “look at this picture of me I took last night” and it appears to come from a friend or is more targeted at somebody who regularly is likely to receive PDF attachments or Word .doc attachments or any other common file that you use every day.
The basic rule is NEVER open any attachment to an email, unless you are expecting it. Now that is very easy to say but quite hard to put into practice, because we all get emails with files attached to them. Our friends and family love to send us pictures of them doing silly things, or even cute pictures of the children or pets.
Never just blindly click on the file in your email program. Always save the file to your downloads folder, so you can check it first. Many malicious files that are attached to emails will have a faked extension. That is the 3 letters at the end of the file name. Unfortunately windows by default hides the file extensions so you need to Set your folder options to “show known file types. Then when you unzip the zip file that is supposed to contain the pictures of “Sally’s dog catching a ball” or a report in word document format that work has supposedly sent you to finish working on at the weekend, or an invoice or order confirmation from some company, you can easily see if it is a picture or document & not a malicious program.
If you see .JS or .EXE or .COM or .PIF or .SCR or .HTA .vbs, .wsf , .jse .jar at the end of the file name DO NOT click on it or try to open it, it will infect you.
While the malicious program is inside the zip file, it cannot harm you or automatically run. When it is just sitting unzipped in your downloads folder it won’t infect you, provided you don’t click it to run it. Just delete the zip and any extracted file and everything will be OK. You can always run a scan with your antivirus to be sure. There are some zip files that can be configured by the bad guys to automatically run the malware file when you double click the zip to extract the file. If you right click any suspicious zip file received, and select extract here or extract to folder ( after saving the zip to a folder on the computer) that risk is virtually eliminated. Never attempt to open a zip directly from your email, that is a guaranteed way to get infected. The best way is to just delete the unexpected zip and not risk any infection.