Visa – Your credit card has been blocked

Subject: Your credit card has been blocked.

Visa - Your credit card has been blocked.

The spam attachment contained an encoded script which is used to redirect to an Phoenix Exploit kit at cuqwuuiwrnmfo[.]ru:8080 /images/aublbzdni.php hosted at IP addresse(s):

78.107.82.98
83.238.208.55
95.156.232.102
111.93.161.226
125.19.103.198
190.81.107.70
194.85.97.121
200.169.13.84
202.149.85.37
210.56.23.100
211.44.250.173

During our testing a malicious flash file containing CVE-2011-0611 was downloaded from cuqwuuiwrnmfo[.]ru:8080 /images/fzivjpewxnimgs3.swf. This flash file had the following properties.

File: fzivjpewxnimgs3.swf
Size: 7,780 bytes
MD5: 50cb7c9ffdbb9173a0383c33384d7b24
Timestamp: 2012:03:06 19:35:36+01:00

This flash file exploited CVE-2011-0611 and was detected by 14 of 43 AV vendors on VirusTotal.

A malicious PDF file was also downloaded from cuqwuuiwrnmfo[.]ru:8080 /images/dwhnfphlflcrymj7.php. This PDF file had the following properties:

File: dwhnfphlflcrymj7.php
Size: 13,173 bytes
MD5: 5ee5b1e1adf3173506f3cdab3bb21e84

The PDF exploits CVE-2010-0188 and was detected by 26 of 43 AV vendors on VirusTotal.

If exploitation is successful, it redirects to cuqwuuiwrnmfo[.]ru:8080 /images/jw.php?i=8, a Bugat/Feodo variant with the following properties is installed:

File: gsxohsapcpklkti.exe
MD5: 5ab6e317ae7b9eabeb7c2f4db431816b
Size: 74,240 bytes
Timestamp: 2006:10:21 09:54:08+02:00
Company Name: Fastraq Limited
File Description: Pick Swank Home Pests Libel Whiz
Product Name: Rents Musky Races

Bugat/Feodo is installed as:
File: C:\Documents and Settings\Administrator\Application Data\KB00090109.exe

This Bugat/Feodo variant retrieved its configuration file/target list from a command and control server at ngdvmtwodjjuovsnfj[.]ru:8080 /rwx/B2_9w3/in/. This domain is hosted at the following IP addresses on a fast flux infrastructure:

81.169.187.170
85.214.204.32
94.20.30.91
124.124.212.172
112.78.124.115
182.50.142.154
213.251.187.126

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