I woke up to another overnight mass malspam run of the never ending series of Locky downloaders with a series of blank \/ empty emails with the basic subject of Bill for documents 57608-28-09-2016 pretending to come from from no reply @ random companies, with a semi- random named .rar attachment containing a .JS file. These are using the new Odin file extension on the encrypted files.<\/p>\n
This looks quite different to previous versions of Locky \/ Odin that I have ben seeing recently. The MALWR<\/strong> (https:\/\/malwr.com\/analysis\/YmI0YzExZGVjZTcxNGJmOTllMzAxMzQ1ZWMyYWMyNWQ\/) report shows contact with and attempted download of Net framework and some sort of mapping ( possibly Google earth) . Now I don\u2019t know it that is because MALWR is running in A VM \/sandbox and tries to update itself to install & use needed components or whether Locky has changed to try to download what it can\u2019t find on the victim computer<\/p>\n The subjects vary with each email .They all start with bill for and either documents , paper or parcel the a series of random numbers and the date, looking something like :<\/p>\n 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.<\/p>\n One of the emails looks like:<\/p>\n From:<\/strong> no-reply@simplyorganic.com<\/p>\n Date:<\/strong> Thu 29\/09\/2016 00:44<\/p>\n Subject:<\/strong> Bill for documents 57608-28-09-2016<\/p>\n Attachment:<\/strong> Bill 57608-28-09-2016.rar<\/p>\n totally blank<\/em><\/p>\n 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 \u00a3350\/$400) to recover the files.<\/p>\n 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\u2019t. Don\u2019t 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.<\/p>\n Please read our How to protect yourselves page<\/a> for simple, sensible advice on how to avoid being infected by this sort of socially engineered malware.<\/p>\n 29 September 2016 : Bill 57608-28-09-2016.rar : Extracts to: Bill 5100-4868433109.js Current Virus total detections<\/a>: MALWR shows a download of an encrypted file from one of these locations which is transformed by the script to ErUxQjD1.dll ( VirusTotal) Shows C2 on and also shows various other script files. Payload Security<\/a> shows a few other C2 servers<\/p>\n Previous campaigns over the last few weeks have delivered numerous different download sites and malware versions. There are frequently 5 or 6 and even up to 150 download locations on some days, sometimes delivering the exactly same malware from all locations and sometimes slightly different malware versions. Dridex \/Locky does 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.<\/p>\n This is another one of the files that unless you have \u201cshow known file extensions enabled\u201c, 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.<\/p>\n\n
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