37.58.73.42 / 95.156.228.69 / 195.210.43.42, anyone?
It started with a pretty benign question from an ISC reader. But if the corresponding SQL query times out on our sensors, something is probably indeed going on ... The IP addresses listed above have >30'000 domain names associated to them, all of the format as shown below
byqajg2lclo7221tdx511xf21594e06d2bb1166c296c16adf1cbfe1b [ dot ] bizgo.be
byqajg2lclo7221tdx511xf21594e06d2d442d2a296c5ee5188fa2c0 [ dot ] bizgo.be
byqajg2lclo7221tdx511xf21594e06d2df74c3c296c49dd3801615d [ dot ] bizgo.be
byqajg2lclo7221tdx511xf40934e06d2ce119772967b2379df2211a [ dot ] bizgo.be
bizgo is not the only domain used, there are many, but currently concentrated in *.be. The host names seem to be time-based, and are only valid for the briefest of instants. This makes manual analysis somewhat difficult - by the time you have grabbed a sample and are running it in the sandbox, well, the domain name no longer resolves. Consequently, only a handful of malware reports on VirusTotal and Malwr.com so far actually show a real detection, for example
https://malwr.com/analysis/NmQ5NmYwN2EyMTQzNDY3Zjk3MjY0MTRhOTQzMjE2Mjc/
https://malwr.com/analysis/NWFiMGYxY2E1MzVhNDkxOGIxNDAzNTQ4ODNkODU5ZjQ/
and both suggest that a Trojan Downloader is coming from this IP, but otherwise didn't get all that far with the analysis. For the traffic that a sensor of ours captured, the requested file path was /i/last/index.php, which matches Emerging Threat SID 2015475 for a Blackhole landing page.
If you have intel to share on these domains or IPs, please let us know via the contact form, or the comments below.
Comments
www
Nov 17th 2022
6 months ago
EEW
Nov 17th 2022
6 months ago
qwq
Nov 17th 2022
6 months ago
mashood
Nov 17th 2022
6 months ago
isc.sans.edu
Nov 23rd 2022
6 months ago
isc.sans.edu
Nov 23rd 2022
6 months ago
isc.sans.edu
Dec 3rd 2022
5 months ago
isc.sans.edu
Dec 3rd 2022
5 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
isc.sans.edu
Dec 26th 2022
5 months ago
isc.sans.edu
Dec 26th 2022
5 months ago