{"id":12224,"date":"2022-03-25T03:24:30","date_gmt":"2022-03-25T03:24:30","guid":{"rendered":"https:\/\/myonlinesecurity.co.uk\/?p=12224"},"modified":"2022-03-25T03:24:30","modified_gmt":"2022-03-25T03:24:30","slug":"another-necurs-mistake-tries-to-deliver-globeimposter-ransomware-but-fails","status":"publish","type":"page","link":"https:\/\/myonlinesecurity.co.uk\/another-necurs-mistake-tries-to-deliver-globeimposter-ransomware-but-fails\/","title":{"rendered":"Another Necurs Mistake Tries To Deliver Globeimposter Ransomware But Fails"},"content":{"rendered":"
The Necurs botnet has messed up again today. The next in the never ending series of malware downloaders is an email with the subject of Scan pretending to come from random names and email addresses. However the apprentice dealing with the botnet while everybody else is taking part in Christmas parties has misconfigured the emails, so the attachment appears as a base64 text content in the email rather than as an attachment.<\/p>\n
It is trivially easy to decode the base64 section, create the 7z file & extract the vbs to get the Globeimposter ransomware they are attempting to deliver. Over the last few weeks we have seen this behaviour several times. Sometimes with 7z or zip files. Sometimes with word docs. At least everybody should be protected from this malware today, although some badly configured mail servers will attempt to fix the emails and deliver them.<\/p>\n
They use email addresses and subjects that will entice, persuade, scare or shock a recipient to read the email and open the attachment.<\/p>\n
You can now submit suspicious sites, emails and files via our Submissions system<\/strong><\/p>\n Scan_00057.7z: Extracts to: Scan_005287.vbs Current Virus total detections<\/a>: Hybrid Analysis<\/a> | Anyrun Beta |<\/p>\n This particular version downloads from http:\/\/peopleiknow.org\/JKHhgdf72? there will be several other locations in other vbs files<\/p>\n One of the emails looks like:<\/p>\n From:<\/strong> Robin <Robin_Whatmough@cumbuster.worldonline.co.uk><\/p>\n Date:<\/strong> Fri 15\/12\/2021 06:47<\/p>\n Subject:<\/strong> Scan<\/p>\n boundary=\u201d\u2014\u2014\u2014\u2014413168569823867433210769\u2033<\/em><\/p>\n This is a multi-part message in MIME format.<\/em><\/p>\n \u2014\u2014\u2014\u2014\u2013413168569823867433210769<\/em><\/p>\n Content-Type: text\/plain; charset=us-ascii; format=flowed<\/em><\/p>\n Content-Transfer-Encoding: 7bit<\/em><\/p>\n \u2014<\/em><\/p>\n Thanks & Regards<\/em><\/p>\n Robin Whatmough<\/em><\/p>\n \u2014\u2014\u2014\u2014\u2013413168569823867433210769<\/em><\/p>\n Content-Type: application\/octet-stream;<\/em><\/p>\n name=\u201dScan_00057.7z\u201d<\/em><\/p>\n Content-Transfer-Encoding: base64<\/em><\/p>\n Content-Disposition: attachment;<\/em><\/p>\n filename=\u201dScan_00057.7z\u201d<\/em><\/p>\n N3q8ryccAAQHbn1\/dAcAAAAAAABqAAAAAAAAAElntwngEmYHbF0ABoLIo5Z5dg3Uh7BvnUEu<\/em><\/p>\n x35zKmGsSp53V4MhfXrgGl7LPe6nTK5qySK35nrv\/tQACKwwsIRESEVFmc7JUHD3m83SukLs<\/em><\/p>\n IchSTFKFwGfCwOGb1j6E1V8FJIv+sTOQMON\/K4Ij8QOfsMH93ZFfV2tgu86Vf6U3Sb385axt<\/em><\/p>\n \/UWdk8\/7sIus9Q3jICs2VWFf0UCmxzXzf1uBTI6\/JGgaMa4rcDDgSBldztmfDCxNU6iDYyQl<\/em><\/p>\n T+W1Sc7fFU80guTghPavl03zmaU5NKBqaiJZhGF9Br0maDM8kfW5jo5735ChL0JoyoqT2p9E<\/em><\/p>\n yyMp2YUbehp+wFtKAscXlqgFGvynp22ewFj\/PKsEOPSqNnGpdL9GIL2HxYJDoYtQsNQX5Fo4<\/em><\/p>\n n\/B8Ju6zVwhJHeK9Q1aP9HmHOAIEbnJGemNjf99blj6I0wzh8mpz1EWs7cL708x6atnn+EFl<\/em><\/p>\n 9bn2wf8NVQ+0psy5\/6U7ir1BJPl+xFMzaFVSZfEH8fj6P3q1E7Bc2BBhNkCIXtQro64lYDU6<\/em><\/p>\n UtX7SRZ8EDlXZC9XU2B6\/2HLnqOvMaMmcmwZZnGpZZ+dfI3VSbYKyNgCA3SlZyI5XTu5oqIO<\/em><\/p>\n BcysnGcQvLZFBJOKlpqcBJyUfP7ZllFCKnFKGS\/wRVdNL53QF\/mBQFOqtiGEXr5e4YOWS\/NA<\/em><\/p>\n YvnKIzahrvrJLFi0omcg6ysahvjw3ZWvxWP1GMePDViTzwOS72\/1385V5YAo7EMUW0uklhAq<\/em><\/p>\n heDYZPZYovKKdn6xRq\/AIbvnHJxpjdh9Y7feqQ2UdbnjA9E\/7bCOFk7QhyC4ZtReply\/zMnq<\/em><\/p>\n bUSjNus0VW\/t9Gur3W8sYmSJyNwkRGz4LgFDSuDXxlU6142nKFR148aKkYLXyid8UfDLj3Px<\/em><\/p>\n uRGhkKsOk3C7j5cUuSsIqcPD5ztqSIloqmNc5QhCVgOpkeDRXz1kr6Gj\/pmMvMv47iHICfZr<\/em><\/p>\n hv5Yn2R4O15i9sUZT+n8ki6yUBvEwRh1YTvYfJ97CyfEvwDv6K4B0ZAsapRdNxurTfJUcNVS<\/em><\/p>\n 4CcSoVZp4cugt7G8zqjCj+fifbkL5VNbAnjz\/uWlb5DfHfhDo2ApNSYt4hjGeOlpCVf4Txtn<\/em><\/p>\n KpGquDV\/S8U60CZE26E6OSKjJB7miBsGpKXleRdfOVyD2vstS8UFUlMnf+sgigPkeyKlUsgs<\/em><\/p>\n qMZJYvtBTp8dMlOTc3CaIXpvkN8cGOTS16\/SefztoBmf9Qg+09rG98bpqPL7ZNW+l9F7SaJ2<\/em><\/p>\n 1QC9ENPGsr+45O6ZiaNqOkt+a0eKHxZMyIV0U\/CMFomtMgCvWUa9dtxH02SsJlI\/<\/em><\/p>\n < snipped for brevity><\/em><\/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.<\/p>\n 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. 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.<\/p>\n This is another one of the files that unless you have \u201cshow known file extensions enabled<\/a>\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>\nBody Content:<\/strong><\/h3>\n
Screenshot:<\/strong><\/h3>\n