Neutrino Exploit Kit via EITEST 85.93.0.12 delivers CrypMic Ransomware


NOTES:

  • Today I captured traffic from the latest version of CrypMic ransomware. The ransomware was delivered via the EITEST campaign.
  • I first saw the EITEST campaign sending CrypMic Ransomware on July 28th, 2016.
  • Some background on the EITEST campaign can be found in a Palo Alto Networks blog post How the EITest Campaign’s Path to Angler EK Evolved Over Time.
  • CrypMic continues to send its ransom notes over SSL port 443 in clear text.

I have added a zipped pcap file for your analysis. The password is the usual used by malware researchers. If you do not know it please email me.
info@broadanalysis.com

PCAP file of the infection traffic:
2016-08-03-Neutrino-EK-pcap.zip

 

ASSOCIATED DOMAINS AND IP ADDRESSES:

  • 85.93.0.12 – botuky.xyz – EITEST GATE
  • 138.201.210.157 – rateaided-causidical.olympiaboxing.co.uk – Neutrino EK
  • 193.111.140.100 – Port 443 – C2 Check-In – POST INFECTION TRAFFIC

ASSOCIATED DOMAINS FOR RANSOM PAYMENT:

  • http://7aggi2bq4bms4dfo.onion.to
  • http://7aggi2bq4bms4dfo.onion.city

 

IMAGES AND DETAILS OF INFECTION CHAIN:

Shown above: Traffic  associated with the Neutrino exploit and CrypMic ransomware infection

 

Shown above: Injected script found on compromised site redirecting to an EITEST gate

 

Shown above: Script found on the EITEST gate which redirects to the Neutrino Exploit Kit landing page

 

Shown above: Partial content of packet 206 shows Neutrino exploiting flash

 

Shown above: CrypMic .DLL file executed via regsvr32.exe

 

Shown above: Windows desktop background image and dropped files associated with the CrypMic ransomware infection

 

MALICIOUS PAYLOAD ASSOCIATED WITH NEUTRINO EXPLOIT: