2016-12-13 - EITEST RIG-E FROM 185.162.8.155 SENDS GOOTKIT
ASSOCIATED FILES:
- ZIP archive of the pcap: 2016-12-13-EITest-Rig-E-pcaps.zip 1.1 MB (1,095,204 bytes)
- 2016-12-13-EITest-Rig-E-sends-Gootkit.pcap (934,379 bytes)
- 2016-12-13-example-of-Gootkit-post-infection-traffic.pcap (263,791 bytes)
- ZIP archive of the malware: 2016-12-13-EITest-Rig-E-sends-Gootkit-malware-and-artifacts.zip 304 kB (303,933 bytes)
- 2016-12-13-EITest-Rig-E-artifact-QXj6sFosp.txt (1,137 bytes)
- 2016-12-13-EITest-Rig-E-flash-exploit.swf (12,375 bytes)
- 2016-12-13-EITest-Rig-E-landing-page.txt (85,529 bytes)
- 2016-12-13-EITest-Rig-E-payload-Gootkit-radD6E45.tmp.exe (409,088 bytes)
- 2016-12-13-page-from-cavallinomotorsport.com-with-injected-EITest-script.txt (18,842 bytes)
BACKGROUND ON RIG EXPLOIT KIT:
- I'm currently tracking 3 versions of Rig EK as classified in an October 2016 blog post by Kafeine.
- Rig-V: a "VIP version" with new URL patterns & RC4 payload encryption. Used by the Afraidgate & pseudoDarkleech campaigns. Sometimes used by the EITest campaign.
- Rig-E: a variant with old Rig EK URL patterns & RC4 payload encryption. Also known as Empire Pack. I often see Rig-E used by the EITest campaign.
- Rig standard: uses new URL patterns introduced by Rig-V, but old obfuscation (ASCII string to XOR the payload binary). I haven't seen this one in a while.
BACKGROUND ON THE EITEST CAMPAIGN:
- Something I wrote on exploit kit (EK) fundamentals: link
- 2016-10-03 - Palo Alto Networks Unit 42 blog: EITest Campaign Evolution: From Angler EK to Neutrino and Rig.
- 2016-10-03 - Broadanalysis.com: EITest campaign stopped using a gate.
- 2016-10-15 - Broadanalysis.com: EITest campaing stops using obfuscation for injected script in pages from compromised websites.
Shown above: Flowchart for this infection traffic.
TRAFFIC
Shown above: Injected script from the EITest campaign from the compromised site.
Shown above: Pcap of the infection traffic filtered in Wireshark.
ASSOCIATED DOMAINS:
- cavallinomotorsport.com - Compromised site
- 185.162.8.155 port 80 - f6au8.hertmeroltaret.top - Rig-E
- 185.44.105.78 port 80 - d10.2020votekanye.com - Gootkit post-infection HTTP traffic
- 185.120.144.149 port 80 and port 443 - nc7.granoladadgear.us - Gootkit post-infection HTTPS/SSL/TLS traffic
FILE HASHES
FLASH EXPLOIT:
- SHA256 hash: 6b5acad316d807c7b5c1f36de0f43612c0ea2af666a72e263f5670b7819f3534 (12,375 bytes)
File description: Rig-E Flash exploit seen on 2016-12-13
PAYLOAD (GOOTKIT):
- SHA256 hash: 50cea0ea62e68e925ce58d64bddad238e95c641317af2078595115c2c993acfe (409,088 bytes)
File path: C:\Users\[Username]\AppData\Local\Temp\radD6E45.tmp.exe
File path: C:\Users\[Username]\AppData\Roaming\Microsoft\Internet Explorer\cmmregs.exe
IMAGES
Shown above: Some alerts on the post-infection traffic using the Emerging Threats and ETPRO rulesets in Sguil on Security Onion.
FINAL NOTES
Once again, here are the associated files:
- ZIP archive of the pcap: 2016-12-13-EITest-Rig-E-pcaps.zip 1.1 MB (1,095,204 bytes)
- ZIP archive of the malware: 2016-12-13-EITest-Rig-E-sends-Gootkit-malware-and-artifacts.zip 304 kB (303,933 bytes)
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