Another Day, Another Wave of Phishing Emails
I'm collecting a lot of phishing samples every day and most of them are part of big waves of spam... Millions of messages are sent with hope that at least some victims will fall in the trap. And sometimes, you find a nice (different) one like yesterday. It was a classic email with the subject "Important Notice" enticing the victim to open the attached file. The malicious file was an HTML document with an obfuscated JavaScript:
document.write(unescape('%3c%21%64%6f%63%74%79%70%65%20%68%74%6d%6c%3e%0d%0a%3c%68%74%6d%6c%3e%0d%0a%
3c%68%65%61%64%3e%0d%0a%3c%6d%65%74%61%20%63%68%61%72%73%65%74%3d%22%75%74%66%2d%38%22%3e%0d%0a%3c%74
%69%74%6c%65%3e%45%78%63%65%6c%20%4f%6e%6c%69%6e%65%3c%2f%74%69%74%6c%65%3e%0d%0a%3c%6d%65%74%61%20%6
e%61%6d%65%3d%22%67%65%6e%65%72%61%74%6f%72%22%20%63%6f%6e%74%65%6e%74%3d%22%57%59%53%49%57%59%47%20%
... (very long payload) ...
4%3d%22%22%3e%3c%2f%64%69%76%3e%0d%0a%3c%2f%62%6f%64%79%3e%0d%0a%3c%2f%68%74%6d%6c%3e'));
This is not complicated to de-obfuscate this payload (the code is available here). The attacker generated a page with an online HTML editor and added a form to capture credentials. The rendered page looks like a fake Microsoft Excel screenshot popping up a dialog box:
The HTML objects are downloaded from hxxp://tourkrabithailand.com/images/services/gr/ and credentials are posted to hxxp://mat-update.be/money/result.php. I contacted the Belgian CERT yesterday to report this website and the domain is already blocked.
Nothing fancy, bad design (why a blue "Download" button?) but it works! The JavaScript code runs below the radar with a low VT detection rate: 2/56 (link).
Xavier Mertens
ISC Handler - Freelance Security Consultant
PGP Key
Comments
Anonymous
Dec 3rd 2022
9 months ago
Anonymous
Dec 3rd 2022
9 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
https://defineprogramming.com/
Dec 26th 2022
9 months ago
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
https://defineprogramming.com/
Dec 26th 2022
9 months ago
rthrth
Jan 2nd 2023
8 months ago