2016-09-15 - TWO EXAMPLES OF EITEST RIG EK

ASSOCIATED FILES:

• ZIP archive of the pcaps:  2016-09-15-EITest-Rig-EK-both-pcaps.zip   4.3 MB (4,330,374 bytes)

• 2016-09-15-EITest-Rig-EK-first-example.pcap   (460,433 bytes)
• 2016-09-15-EITest-Rig-EK-second-example.pcap   (4,662,219 bytes)

• ZIP archive of the malware:  2016-09-15-EITest-Rig-EK-malware-and-artifacts.zip   3.1 MB (3,103,527 bytes)

• 2016-09-15-EITest-Rig-EK-flash-exploit-first-run.swf   (49,000 bytes)
• 2016-09-15-EITest-Rig-EK-flash-exploit-second-run.swf   (49,000 bytes)
• 2016-09-15-EITest-Rig-EK-landing-page-first-run.txt   (3,422 bytes)
• 2016-09-15-EITest-Rig-EK-landing-page-second-run.txt   (3,421 bytes)
• 2016-09-15-EITest-Rig-EK-payload-first-run.exe   (61,952 bytes)
• 2016-09-15-EITest-Rig-EK-payload-second-run.exe   (219,648 bytes)
• 2016-09-15-EITest-flash-redirect-from-allaboutbelgaum.top.swf   (4,101 bytes)
• 2016-09-15-EITest-flash-redirect-from-kikuxxx.top.swf   (4,101 bytes)
• 2016-09-15-additional-malware-dropped-1-of-2-first-run.dll   (179,200 bytes)
• 2016-09-15-additional-malware-dropped-1-of-2-second-run.dll   (1,313,280 bytes)
• 2016-09-15-additional-malware-dropped-2-of-2-first-run.dll   (179,200 bytes)
• 2016-09-15-additional-malware-dropped-2-of-2-second-run.dll   (1,316,864 bytes)
• 2016-09-15-page-from-hydrogengroup.com-with-injected-EITest-script-first-run.txt   (52,406 bytes)
• 2016-09-15-page-from-hydrogengroup.com-with-injected-EITest-script-second-run.txt   (51,856 bytes)

 

BACKGROUND ON THE EITEST CAMPAIGN:

• Something I wrote on exploit kit (EK) fundamentals:  link
• 2016-03-31 - Palo Alto Networks Unit 42 blog:  How the EITest Campaign's Path to Angler EK Evolved Over Time.
• 2016-06-08 - SANS ISC diary:  Neutrino EK and CryptXXX  (campaigns using Angler EK switch to Neutrino EK)
• 2016-08-18 - SANS ISC diary:  1 compromised site - 2 campaigns  (EITest campaign switched to Rig EK)

 

Shown above:  Flowchart for this infection traffic.

 

TRAFFIC

Shown above:  An example of injected script in a page from the compromised site pointing to an EITest gate.

 

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

 

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

 

FIRST EXAMPLE:

• www.hydrogengroup.com - Compromised site
• 31.184.192.188 port 80 - kikuxxx.top - EITest gate
• 185.117.73.174 port 80 - nvfd0.iuuo764.top - Rig EK
• 31.184.234.117 port 80 - siri5.ml - Post-infection traffic, possible Tilon/SpyEye2 activity

 

SECOND EXAMPLE:

• www.hydrogengroup.com - Compromised site
• 31.184.192.188 port 80 - allaboutbelgaum.top - EITest gate
• 185.117.73.175 port 80 - aqir4.hmh9ow4.top - Rig EK
• 185.118.67.195 port 80 - 185.118.67.195 - Post-infection traffic, possible Miuref/Boaxxe activity
• various IP addresses - Post-infection probable click-fraud traffic

 

FILE HASHES

FLASH FILES:

• SHA256 hash:  d2c9c429a864c70a660b8eb1343953e53f98aa7f369533afc4ba3e7e642ca519
  File name:  2016-09-15-EITest-flash-redirect-from-kikuxxx.top.swf
  File name:  2016-09-15-EITest-flash-redirect-from-allaboutbelgaum.top.swf

• SHA256 hash:  e20fc49d11d8232b51ec3ce2fa24d3081c3d48db4cb66a31e2bc2c07b43e27b8
  File name:  2016-09-15-EITest-Rig-EK-flash-exploit-first-run.swf
  File name:  2016-09-15-EITest-Rig-EK-flash-exploit-second-run.swf

PAYLOADS:

• SHA256 hash:  164222d29856cba2d913e48ee36ef0d7b2fde943d7369437106317e4252f124c
  File name:  2016-09-15-EITest-Rig-EK-payload-first-run.exe   (possible Tilon/SpyEye2)
  File name:  C:\ProgramData\xrsfnw.exe

• SHA256 hash:  8451890ea0a66901d1145161ed92c4f45e2655af0419cd0b431555da45b2cb1e
  File name:  2016-09-15-EITest-Rig-EK-payload-second-run.exe   (possible Miuref/Boaxxe)
  File name:  C:\Users\[username]\AppData\Local\Temp\6A77.exe
  File name:  C:\Users\[username]\AppData\Local\AQworks\6A77.exe

ARTIFACTS:

• SHA256 hash:  9e992258e31f81eaaba824ac4a1e80f045d0c1fa707a8b89b0735e617ab6fe12
  File name:  2016-09-15-additional-malware-dropped-1-of-2-first-run.dll
  File name:  C:\Users\[username]\AppData\Local\Temp\8f01207

• SHA256 hash:  6118c8d89695dd1f45a5de6f86db25b422d18206ea916eff159fd7c4c2c52456
  File name:  2016-09-15-additional-malware-dropped-2-of-2-first-run.dll
  File name:  C:\Users\[username]\AppData\Local\Temp\5b75e9dc

• SHA256 hash:  89aeaa25ae395286a2911f997ee368d021ef795afa82497bee2e0b8ab66693f8
  File name:  2016-09-15-additional-malware-dropped-1-of-2-second-run.dll
  File name:  C:\Users\[username]\AppData\Local\AQworks\kwxtedmr.dll

• SHA256 hash:  996a7f0d40c8883c752f6035ddab23212553169aec90a7660839767f4023afb2
  File name:  2016-09-15-additional-malware-dropped-2-of-2-second-run.dll
  File name:  C:\Users\[username]\AppData\Local\Extion\sjcximrq.dll

 

IMAGES FROM THE FIRST EXAMPLE

Shown above:  Registry key(s) that made the malware from the first example persistent.

 

Shown above:  Alerts on the first example traffic in Security Onion using Suricata and the ET Pro ruleset.

 

Shown above:  Some alerts on the first example using Snort 2.9.7.3 with the Snort/Talos subscriber set.

 

IMAGES FROM THE SECOND EXAMPLE

Shown above:  Registry key(s) that made the malware from the second example persistent.

 

Shown above:  Alerts on the second example traffic in Security Onion using Suricata and the ET Pro ruleset.

 

Shown above:  Some alerts on the second example using Snort 2.9.7.3 with the Snort/Talos subscriber set.

 

FINAL NOTES

Once again, here are the associated files:

• ZIP archive of the pcaps:  2016-09-15-EITest-Rig-EK-both-pcaps.zip   4.3 MB (4,330,374 bytes)
• ZIP archive of the malware:  2016-09-15-EITest-Rig-EK-malware-and-artifacts.zip   3.1 MB (3,103,527 bytes)

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