Sextortion scams have been in the rise in the last six months and these scams normally implement the technique of threatening to expose a user’s online activities (pornography habits, dating/adultery site usage) to all their contacts and friends/family unless a payment is completed.
A number of the recent sextortion scams have boosted their credibility by claiming to have users’ passwords. However, new sextortion scams have been discovered that are using a different tactic to get users to pay up. The email template seen in this scam is similar to other recent sextortion scams. The scammers say that they have a video of the victim viewing adult content. The footage was captured using the victim’s webcam and has been spliced with screenshots of the content that was being looked at.
In the new campaign the email includes the user’s email account in the text of the email, a password (probably an old password compromised in a previous breach), and a hyperlink that the victim is asked to click to download the video that has been created and see exactly what will soon be shared via email and social media networks.
Clicking the link in the video will lead to the downloading of a zip file. The compressed file includes a document including the text of the email and the supposed video file. That video file is really an information stealer – The Azorult Trojan.
This type of scam is even more likely to be successful than past campaigns. Many people who receive a sextortion scam email will see it as fake. However, the a link to download a video being included may lead to many people downloading the file to see if the threat is real.
If the zip file is downloaded and the Azorult Trojan executed, it will silently gather data from the user’s computer – similar information to what the hacker claims to have already obtained: Cookies from websites the user has visited, chat histories, files stored on the computer, and login information entered through browsers such as email account and bank details.
The Azorult Trojan will also install a secondary payload: GandCrab ransomware. Once data has been gathered, the user will have their personal files encrypted: Documents, spreadsheets, digital photos, databases, music, videos, and more. Recovery will only be possible if these files having been backed up and not also encrypted by the ransomware. Apart from permanent file loss, the only other option will be to pay a sizeable ransom for the key to decrypt the files.
If the email was issued to a business email account, or a personal email account that was accessed at work, files on the victim’s work computer will also be encrypted. As a record of the initial email will have been extracted on the device, the reason why the malware was downloaded will be made clear to the IT department.
The key to not being tricked is to disregard any threats sent using email and never click links in the emails or click on email attachments.