2016-10-06 - EITEST RIG EK

ASSOCIATED FILES:

• ZIP archive of the pcap:  2016-10-06-EITest-Rig-EK-both-pcaps.zip   181.3 kB (181,258 bytes)

• 2016-10-06-EITest-Rig-EK-first-run.pcap   (293,744 bytes)
• 2016-10-06-EITest-Rig-EK-second-run.pcap   (142,303 bytes)

• ZIP archive of the malware:  2016-10-06-EITest-Rig-EK-malware-and-artifacts.zip   126.7 kB (126,664 bytes)

• 2016-10-06-CryptFile2-HELP_DECRYPT_YOUR_FILES.TXT   (3,345 bytes)
• 2016-10-06-EITest-Rig-EK-flash-exploit-both-runs.swf   (25,334 bytes)
• 2016-10-06-EITest-Rig-EK-landing-page-first-run.txt   (3,450 bytes)
• 2016-10-06-EITest-Rig-EK-landing-page-second-run.txt   (3,534 bytes)
• 2016-10-06-EITest-Rig-EK-payload-first-run.exe   (212,992 bytes)
• 2016-10-06-EITest-Rig-EK-payload-second-run-CryptFile2.exe   (77,824 bytes)
• 2016-10-06-page-from-datamax.com-with-injected-EITest-script-first-run.txt   (20,609 bytes)
• 2016-10-06-page-from-datamax.com-with-injected-EITest-script-second-run.txt   (20,745 bytes)

 

NOTES:

• Today's tipper on the compromised website came from a tweet by @pancak3lullz on 2016-10-04 (link).
• Payload from my first run looks like the same Hancitor/Chanitor loader that @BroadAnalysis reported earlier today on his blog (link).
• I saw similar, but not the same exact callback traffic, though.

 

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 (the same day my Palo Alto Networks Unit 42 blog went live).

 

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

Shown above:  Injected EITest script in a page from the compromised website.

 

Shown above:  Traffic from the first pcap filtered in Wireshark.

 

Shown above:  Traffic from the second pcap filtered in Wireshark.

 

ASSOCIATED DOMAINS:

• datamax.com - Compromised website (both pcaps)
• 178.32.92.99 port 80 - y76u2o.cunhb.top - Rig EK (first pcap)
• 107.191.46.57 port 80 - asd.arthurmilleremlak.com - Rig EK (second pcap)
• api.ipify.org - IP address check by the infected host (first pcap)
• 1.1.1.1 port 80 - gotevengsorol.ru - Attempted TCP connection, no response from server (first pcap)
• DNS query for: hensoflettoft.com - response: No Such Name (first pcap)
• DNS query for: tontbetleftun.com - response: No Such Name (first pcap)
• DNS query for: roponwithro.com - response: No Such Name (first pcap)
• 37.59.39.53 port 80 - 37.59.39.53 - CryptFile2 post-infection traffic (second pcap)

 

FILE HASHES

FLASH EXPLOIT:

• SHA256 hash:  7499355f001a6da3a3f0fbeffde0e213416a52498ce4211182e058a62705f4cc
  File name:  2016-10-06-EITest-Rig-EK-flash-exploit-both-runs.swf   (25,334 bytes)

PAYLOADS:

• SHA256 hash:  697e8783649d8a5b26b0ce69cf624dd46ebc78c84a2e254d8ee98a04b4358463
  File name:  2016-10-06-EITest-Rig-EK-payload-first-run.exe   (212,992 bytes)

• SHA256 hash:  83f549e4db93384add65c4203bf80d1eb9b7b5272b9636e77532284d8b760928
  File name:  2016-10-06-EITest-Rig-EK-payload-second-run-CryptFile2.exe   (77,824 bytes)

 

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcap:  2016-10-06-EITest-Rig-EK-both-pcaps.zip   181.3 kB (181,258 bytes)
• ZIP archive of the malware:  2016-10-06-EITest-Rig-EK-malware-and-artifacts.zip   126.7 kB (126,664 bytes)

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