{"id":14637,"date":"2022-04-07T12:15:55","date_gmt":"2022-04-07T12:15:55","guid":{"rendered":"https:\/\/myonlinesecurity.co.uk\/?p=14637"},"modified":"2023-04-04T09:23:51","modified_gmt":"2023-04-04T09:23:51","slug":"invoices-from-random-companies-accounts-messaging-servicepost-xero-org-delivers-dridex-banking-trojan","status":"publish","type":"page","link":"https:\/\/myonlinesecurity.co.uk\/invoices-from-random-companies-accounts-messaging-servicepost-xero-org-delivers-dridex-banking-trojan\/","title":{"rendered":"Invoices From Random Companies Accounts Messaging-Service@post-xero.org Delivers Dridex Banking Trojan"},"content":{"rendered":"
It looks like Dridex banking Trojan is well and truly back attacking the UK today. The next in the never ending series of malware downloaders is an email with the subject of Invoice INV-01823 (Amended) from Fleurs ( random numbers and random companies ) coming from Accounts <messaging-service@post-xero.org> . There is no zip attachment but a link in the email to download a zip<\/p>\n
post-xero.org is a newly created domain, that is registered to a Chinese entity with probably fake details. It appears to be hosted on OVH in France using a mass number of SPF IP addresses to avoid being caught in spam traps post-xero.org [46.105.101.84]\u2026 ns382934.ip-46-105-101.eu<\/p>\n
post-xero.org<\/td>\n | IN<\/td>\n | TXT<\/td>\n | v=spf1 \nip4:188.165.224.148 \nip4:5.39.6.0\/24 \nip4:188.165.227.101 \nip4:176.31.222.0\/24 \nip4:188.165.224.211 \nip4:37.59.251.0\/24 \nip4:188.165.226.161 \nip4:91.121.224.0\/24 \nip4:176.31.102.214 \nip4:213.32.119.0\/24 \nip4:91.121.137.23 \nip4:213.32.119.0\/24 \nip4:94.23.199.47 \nip4:213.32.119.0\/24 \nip4:91.121.177.9 \nip4:213.32.119.0\/24 \nip4:91.121.108.8 \nip4:213.32.119.0\/24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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 1 December 2021 : INV-01823.zip : Extracts to: INV-01823.js Current Virus total detections: Where comments show this downloads the same Dridex banking Trojan from the same locatiosn as described in THIS earlier post<\/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> Accounts <messaging-service@post-xero.org><\/p>\n Date:<\/strong> Thu 01\/12\/2021 08:02<\/p>\n Subject:<\/strong> Invoice INV-01823 (Amended) from Fleurs<\/p>\n Attachmen<\/strong>t: link in email to INV-01823.zip<\/p>\n Dear Customer, Please find attached invoice INV-01823 (Amended) for 421.59 GBP. This invoice was sent too early in error. The payment date should be 7th December 2021. Kindly accept our apologies for the oversight and for any inconvenience caused. The amount outstanding of 421.59 GBP is due on 07 Dec 2021. View and pay your bill: https:\/\/in.xero.com\/vjNPxBRausdmfvsgnZKOMWvyHsISTwYm If you have any questions, please do not hesitate to contact us. Kind regards, Accounts Department<\/em><\/p>\n Fleurs T +44 (0) 213 227 4089<\/em><\/p>\n The link in the body does not go to xero.com which is a legitimate small business accounting software but to a criminal controlled site on SharePoint \u2018https:\/\/ryandixon-my.sharepoint.com\/personal\/judy_dixonconstructionwa_com_au\/_layouts\/15\/guestaccess.aspx?guestaccesstoken=k9xc1qR8YuAKTF6D2%2bMExORcjRIY3nQj8RB7WhdXaSw%3d&docid=09d01294b7e434b2aad87127682150354&rev=1\u2019<\/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 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 |