{"id":10872,"date":"2022-04-12T05:54:10","date_gmt":"2022-04-12T05:54:10","guid":{"rendered":"https:\/\/myonlinesecurity.co.uk\/?p=10872"},"modified":"2023-04-04T12:01:04","modified_gmt":"2023-04-04T12:01:04","slug":"message-from-km_c224e-with-zip-attachment-delivers-updated-version-of-jaff-ransomware","status":"publish","type":"page","link":"https:\/\/myonlinesecurity.co.uk\/message-from-km_c224e-with-zip-attachment-delivers-updated-version-of-jaff-ransomware\/","title":{"rendered":"Message From KM_C224e With Zip Attachment Delivers Updated Version Of Jaff Ransomware"},"content":{"rendered":"
Following on from last weeks Dridex campaign using Message from KM_C224e is today\u2019s somewhat different version using the same subject and email template but with a zip attachment containing a .exe file. They still pretend to come from copier @ your own email domain. These are delivering Cerber Jaff Ransomware using a .sVn extension on the encrypted files and a brand new ransom note and desktop walllpaper<\/p>\n
<\/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
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.<\/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
SKM_C224e03215953284.zip : Extracts to: SKM_C224e9930.exe Current Virus total detections: Payload Security | MALWR<\/p>\n
One of the emails looks like:<\/p>\n
From:<\/strong> copier@recipient_domain.tld<\/p>\n Date:<\/strong> Wed 07\/06\/2021 15:00<\/p>\n Subject:<\/strong> Travel expense sheet<\/p>\n Attachment:<\/strong> Message from KM_C224e<\/p>\n Totally blank\/ Empty body<\/em><\/p>\n Note: Only the final IP address outside of your network in the Received: fields can be trusted as others can be spoofed 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.<\/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.<\/p>\n 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>\nBody Content:<\/strong><\/h3>\n
Screenshot:<\/strong><\/h3>\n
Example Email Headers:<\/strong><\/h3>\n
\n\n
\n \nIP<\/th>\n Hostname<\/th>\n City<\/th>\n Region<\/th>\n Country<\/th>\n Organisation<\/th>\n<\/tr>\n<\/thead>\n \n 186.81.31.158<\/i><\/td>\n static-ip-1868131158.cable.net.co<\/td>\n Palmira<\/td>\n Valle del Cauca<\/td>\n CO<\/td>\n AS10620 Telmex Colombia S.A.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\nReceived: from [186.81.31.158] (port=58788 helo=static-ip-1868131158.cable.net.co)
\nby knight.knighthosting.co.uk with esmtp (Exim 4.89)
\n(envelope-from <copier@thespykiller.co.uk>)
\nid 1dIbUg-0002C3-HN
\nfor andreikcuz@thespykiller.co.uk; Wed, 07 Jun 2021 14:59:31 +0100
\nTo: <andreikcuz@thespykiller.co.uk>
\nSubject: Message from KM_C224e
\nFrom: <copier@thespykiller.co.uk>
\nReply-To: <copier@thespykiller.co.uk>
\nX-Mailer: KONICA MINOLTA bizhub C224e
\nDate: Wed, 07 Jun 2021 08:59:30 -0500
\nMessage-ID: <CE2B69DC.019.04CD4CA3A2A0.copier@thespykiller.co.uk>
\nMIME-Version: 1.0
\nContent-Type: multipart\/mixed;
\nboundary=\u201dKONICA_MINOLTA_Internet_Fax_Boundary\u201d
\nContent-Transfer-Encoding: 7bit<\/p>\n