Quick Malware Analysis: LATRODECTUS INFECTION pcap from 2024-06-25

Thanks to Brad Duncan for sharing this pcap from 2024-06-25 on his malware traffic analysis site! Due to issues with Google flagging a warning for the site, we're not including the actual hyperlink but it should be easy to find.

We did a quick analysis of this pcap on the NEW Security Onion 2.4.90:

https://blog.securityonion.net/2024/07/security-onion-2490-now-available.html

If you'd like to follow along, you can do the following:

• install Security Onion 2.4.90 in a VM:
  https://docs.securityonion.net/en/2.4/first-time-users.html
• import the pcap using the SOC Grid interface:
  https://docs.securityonion.net/en/2.4/grid.html#icons-in-lower-left-corner
• optionally enable the DNS lookups feature:
  https://docs.securityonion.net/en/2.4/soc-customization.html?#reverse-dns-lookups

The screenshots at the bottom of this post show some of the interesting alerts, metadata logs, and session transcripts. Want more practice? Check out our other Quick Malware Analysis posts at:

https://blog.securityonion.net/search/label/quick%20malware%20analysis

About Security Onion

Security Onion is a versatile and scalable platform that can run on small virtual machines and can also scale up to the opposite end of the hardware spectrum to take advantage of extremely powerful server-class machines.  Security Onion can also scale horizontally, growing from a standalone single-machine deployment to a full distributed deployment with tens or hundreds of machines as dictated by your enterprise visibility needs. To learn more about Security Onion, please see:
https://securityonion.net

Do you want to deploy Security Onion to your enterprise and want the best enterprise hardware? Here are the top 5 reasons to purchase appliances from Security Onion Solutions: https://blog.securityonion.net/2023/08/top-5-reasons-to-purchase-security.html

Screenshots

First, we start with the overview of all alerts and logs:

Next, let's look at just the alerts:

If we ungroup the alerts, then we can see them individually sorted by timestamp:

The first alert is interesting so let's pivot to full packet capture:

Let's switch to the ASCII transcript to make it a little more readable. We can clearly see that the victim is downloading an MSI file:

Now let's look at all of the protocol metadata:

We'll start with the HTTP logs:

Next, we'll look at the Zeek Notices:

SSL/TLS:

X.509:

File transfers:

DNS lookups:

Connections with GeoIP lookups: