BurninCandlePcapAnalysis :)

 2022-03-21 - TRAFFIC ANALYSIS EXERCISE – BURNINCANDLE

Summary - On Monday 2022-03-21 at approximately 20:58 UTC, a Windows host used by Patrick Zimmerman was infected with IcedID (Bokbot) malware that led to Cobalt Strike

TaskWrite an incident report. (With Explanation).

Details  -

1.     Host Name – DESKTOP-5QS3D5D

2.     Host IP and Mac Address – 10.0.19.14 & 00:60:52:b7:33:0f

3.     Windows User name - patrick.zimmerman

4.     Time of infection – Monday 2022-03-21

Explanation – Few steps that I like to follow in order to get the above details easily in by filtering Kerberos Traffic. Usually the host name and windows user are both present here. For this case, I used the below packets which says 303 AS-REQ Follow the stream for both and we get the information.



Once the packet is selected wireshark shows the Source IP and MAC in clear text.

Indicator of Compromise:

188.166.154.118 – Victim machine made contact with oceriesfornot.top. Search for this host on virus total. It has been flagged as command and control malware by 14 vendors. There's a gzip file present as well.


 Back to research , I found out that IcedID uses this technique as the first stage loading mechanism. The Binary Defense Threat Hunting team has a nice technical blog on the IcedID GZIPLOADER . I’d suggest having a look at it.


1.     Upon more research I found out that the cookie present in the above stream means something. _u cookie value holds victims username and password hexlified. So go to cyberchef, and convert it to ascii. You will get DESKTOP 5QS3D5D:patrick.zimmerman:CD2F3B9F67E3C343

157.245.142.66 – Host is antnosience.com. TCP Stream. Use above method.


23.227.198.203 (bupdater.com) – This ip is beaconing with bupdater.com on port 757. And if we use it on virus total it is flagged as a malware.


 

Domains and IP Address for Iced bot

oceriesfornot[.]top

http://188.166.154.118/

antnosience[.]com

157.245.142.66

suncoastpinball[.]com

160.153.32.99

otectagain[.]top

157.245.142.66

seaskysafe[.]com       

91.193.16.181

dilimoretast[.]com

160.153.32.99

Domains and IP addresses for Cobalt Strike:  bupdater[.]com,23.227.198.203,757(Port)





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