Your latest DHL Invoice : HSC4387902 – JS Malware Leads To Locky Ransomware

An email with the subject of Your latest DHL invoice : HSC4387902 [ random numbered] pretending to come from e-billing@dhl.com with a zip attachment is another one from the current bot runs which downloads Locky ransomware. 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.

The email looks like:

From: e-billing@dhl.com

Date: Mon 07/03/2016 10:53

Subject: Your latest DHL invoice : HSC4387902

Attachment:HSC4387902.zip

Body content:

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY
Dear Customer,

Please find attached your invoice in PDF format, dated 07/03/2016 for shipments and services supplied by DP DHL.

If you would like to download your invoice in a different format, click here to go to the DHL e-Billing website. You can also view your account details and on line invoice history here.

In the event of a problem with opening the attachment, please contact the e-Billing support team on 08442 480 777 for assistance.

If you would like to verify the digital signature on this invoice, click here to go to the DHL e-Billing website and go to the FAQ section for instructions.

For all invoice content related queries, please contact 08442 480 777.

We look forward to receiving your payment in due course, and within the agreed credit terms as stated on your invoice.

We would like to thank you for using the services of DP DHL.

With kind regards,

The DHL e-Billing team

Click here to download Adobe Acrobat Reader

PROTECT YOUR PASSWORD

Screenshot:

Your latest DHL invoice HSC4387902

These malicious attachments normally have a password stealing component, with the aim of stealing your bank, PayPal or other financial details along with your email or FTP ( web space) log in credentials. Many of them are also designed to specifically steal your Facebook and other social network log in details. A very high proportion are Ransomware versions that encrypt your files and demand money ( about £350/$400) to recover the files.

All the alleged senders, companies, names of employees, amounts, reference numbers and phone numbers mentioned in the emails are all innocent and are just picked at 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.

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.

You can now send any suspicious files for examination by the antivirus companies via our submission system

7 March 2016 : HSC4387902.zip: Extracts to: MNB3492495814.js Current Virus total detections: MALWR shows a download of the same Locky ransomware version as mentioned in THIS post from http://shapes.com.pk/system/logs/87tg7v645c.exe

This is another one of the spoofed icon files that unless you have “show known file extensions enabled“, will look like a DOC or other normal 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.

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. Most ( if not all) 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 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.