An email with the subject of PAYMENT RECEIPT coming from Cynehen Mbakpobe <firstname.lastname@example.org> with a zip attachment which contains some sort of keylogger.
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.
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These are coming from genuine Yahoo email accounts with full email authentication. I have no way of knowing if it is coming from a compromised email account or a fraudulently set up email account. My guess is that because cynehenglobalcompanyltd does appear to exist, is based in Lagos Nigeria and only has a Facebook page with no obvious website, the email account has probably been compromised. However anything with any sort of Nigerian connection always rings loud warning bells. The FB page looks like it probably is an individual who might be slightly over egging the pudding on what services & capabilities he or she can offer.
What makes this malware delivery campaign more unusual is the file when run displays an image to make you believe that the .scr file is an actual screensaver and not an executable file. Anyrun also shows some sort of web connections but no IP or web addresses with error messages and images. HA shows some sort of connection to a Google IP address 188.8.131.52
I can’t see the image shown in the Anyrun report as being available for download, so I am not sure how it is being shown.
One of the emails looks like:
From: Cynehen Mbakpobe <email@example.com>
Date: Wed 01/08/2018 05:14
Subject: PAYMENT RECEIPT
FIND ATTACHED PAYMENT RECEIPT FOR YOUR CONFIRMATION.
ACKNOWLEDGE RECEIPT AND DO THE NEEDFUL.
Received: from sonic301-57.consmr.mail.ne1.yahoo.com ([184.108.40.206]:46543) by my email server with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from <firstname.lastname@example.org>) id 1fkiaE-0004Y7-6r for email@example.com; Wed, 01 Aug 2018 05:17:59 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1533097076; bh=8E+y11SoGy4c/H1aN1kkjK4KYaHNLal4NO1F4fwAPVo=; h=Date:From:Subject:References:From:Subject; b=g8LZYysZVs1bZwSGsKO2J8oofOqCJDGy+u5NDPitI6gk3ipzZNhiQLp4ErzOqbBkuducIFTe7vxJfoaQufd3NhsiR2fP3i9D2qu8m7DvG+JkwMkrLftVmfBJABaoRwas+zaEvO1VujgLoTZJBQEJ550H0EiUbCj8jBFtD/Edq7diNy3qb79kDGl2gYmkjcfvRuO/wDa6hZLU4VvBopMhainI8FwnaEGKdD/2QatJcOrZwPPGSi0WvyAYR1m6hCTis3sigiV+o/N3R760CW+QjhlcO7B5BNUuotm2HHRXFg0YV6ok3SSGR/3hDu+92OQ5gSMl77gl1hVjhxMi1Plhrg== X-YMail-OSG: WetZnhAVM1kn25ZOu5YvTBV1nZ6mHAvJ352uoW9zN1ZwSd7wYTwOpVfPMyVGlca u.EBBIo95wo7wheCUWq7HrvT4fjtlICPp9RQVT5MOzQQ6ZvEYVGzIjbG4fw3CGQyLGLrxVCWA.8. gqKHCeGhagqIkv8h.gzrhfC23Ie8R20dmf7Glm3S0wNk8sezwdjyP3AoMlGvivFVcRYeeRS5Fr0p ndc9Z.Jr4yfALdOkiXWSXfRpeORRdhhNksGy266dkyXPkf8Gb7jvk_x54R4jKAQ8CYUy6kcn_Dqz b_2XhsHxW8aLo_8_uGKwZo7p6wsebVtv3KI6sSY8irhAVK5MdIuX_h_8C9tguDrlhzolG_oObaYA x41sTgtdIe_D5COAWSu5kLk_TSts_jpgdQWctJUnFG_RlTVT_1ambjB6jEIhqqIkthAezr.fdwu1 ug.ScSJucZQs0OEiXzbEd37._BBvtfB6fuuFjmbssGX2rmyUlFupJtZz5xzwVqt11HIdCwvMjJ8z Z_3knTJW88HdkooAeeIPaHMO5n9XUBsXrzKrjq1Y6t685yfpMXwYf07yaj4nstPT3QHs2DZ.Wr5h rD_0LIL07v5P2WyLdEpDs6E35Ms6K4wlr2oJ22OZojyE2lWOJlz2xjAZpijb93G2wRry7ojWUWYb xJ42iWg.Z7Ym7XDFVoBOZhVeV0M6iX6FmKVe9fxRKTDhZDJKcOE8HGw8r1jlzkCqaSvttLno0K73 oM1F8ny5.PzhAJFkxq9HM2piWWIjCJhMHsg_eyHJqpJS_0KJhmOUDM6nhZYwueBg3WPk4YUx6oVy 4JlopJzcbWvtDTjuRrrvVbPQMDnMNBJgLXb4nocPkQ8dmxKWc3qJVPSC5Ta2fj7WNdf.eZRU0fxi XaO0gbLsLRo6IyDn.hIcMOjsqisrrVQDpEhCoTJrgYJcTWLk_9pL4dkSRMN0tCGmPYi5HzDcuf3C pu.tBI6flepPUWYEX1uXpvPCN3n3u8EOhMFpcKR0- Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.ne1.yahoo.com with HTTP; Wed, 1 Aug 2018 04:17:56 +0000 Date: Wed, 1 Aug 2018 04:13:55 +0000 (UTC) From: Cynehen Mbakpobe <firstname.lastname@example.org> Message-ID: <email@example.com> Subject: PAYMENT RECEIPT MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_233005_216889158.1533096835834" References: <firstname.lastname@example.org> X-Mailer: WebService/1.1.12206 YMailNorrin Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36 Content-Length: 811008
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 £350/$400) to recover the files.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’t. Don’t 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.
Please read our How to protect yourselves page for simple, sensible advice on how to avoid being infected by this sort of socially engineered malware.
This is another one of the files that unless you have “show known file extensions enabled“, 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.
Be very careful with email attachments. All of these emails use Social engineering tricks to persuade you to open the attachments that come with the email. Whether it is a message saying “look at this picture of me I took last night” and it appears to come from a friend or is more targeted at somebody who regularly is likely to receive PDF attachments or Word .doc attachments or any other common file that you use every day.
The basic rule is NEVER open any attachment to an email, unless you are expecting it. Now that is very easy to say but quite hard to put into practice, because we all get emails with files attached to them. Our friends and family love to send us pictures of them doing silly things, or even cute pictures of the children or pets.
Never just blindly click on the file in your email program. Always save the file to your downloads folder, so you can check it first. Many malicious files that are attached to emails will have a faked extension. That is the 3 letters at the end of the file name. Unfortunately windows by default hides the file extensions so you need to Set your folder options to “show known file types. Then when you unzip the zip file that is supposed to contain the pictures of “Sally’s dog catching a ball” or a report in word document format that work has supposedly sent you to finish working on at the weekend, or an invoice or order confirmation from some company, you can easily see if it is a picture or document & not a malicious program.
If you see JS or .EXE or .COM or .PIF or .SCR or .HTA .vbs, .wsf , .jse .jar at the end of the file name DO NOT click on it or try to open it, it will infect you.
While the malicious program is inside the zip file, it cannot harm you or automatically run. When it is just sitting unzipped in your downloads folder it won’t infect you, provided you don’t click it to run it. Just delete the zip and any extracted file and everything will be OK. You can always run a scan with your antivirus to be sure. There are some zip files that can be configured by the bad guys to automatically run the malware file when you double click the zip to extract the file. If you right click any suspicious zip file received, and select extract here or extract to folder ( after saving the zip to a folder on the computer) that risk is virtually eliminated. Never attempt to open a zip directly from your email, that is a guaranteed way to get infected. The best way is to just delete the unexpected zip and not risk any infection.
Email from: email@example.com