Let's dissect the campaign, expose its infrastructure/command and control servers, and provide MD5s of the served malware.
Spamvertised Facebook URL+redirection chain: hxxp://goo.gl/QeshtO; hxxp://goo.gl/vVbrHp; hxxp://goo.gl/0oSJ7z; hxxp://goo.gl/38qIq8; hxxp://goo.gl/QNQhc5 -> hxxps://9dvme0lk2r0osqg3qb3rlk95z.storage.googleapis.com/q1fwum32gld35iab9d2u4o35bjsvhjhu309.html?ref=12 -> hxxp://goo.gl/wKXme1 -> hxxp://www.i-justice.org/g-o-27312-gooenn.html
(94.23.166.27) -> hxxp://f3c47a0d01f3ec343f57-2ba5bba9317af81ae21c42000295a455.r9.cf4.rackcdn.com/24471bmbqv07595?ref=27312&aff_sub=27312&sub_id=27312 -> hxxp://www.eklentidunyasi.com/dl.php (176.31.2.155) or hxxp://www.agentofex.com/dl.php (176.227.218.99; www.puee.in) ->
hxxp://docs.google.com/uc?export=download&id=0B6DFdqpSFDAlSmpsTkZkT2hvN28 or hxxps://doc-0g-4o-docs.googleusercontent.com/docs/securesc/ha0ro937gcuc7l7deffksulhg5h7mbp1/7fbm9gn67t8t18r8etd00juf0rvmrrmh/1387836000000/16300082901287672546/*/0BzU3dARQGry0TlMxN3F2STN0Z3M
GA Account ID: UA-36486228-1
Detection rate for the served malware: MD5: 30118bec581f80de46445aef79e6cf10 - detected by 33 out of 48 antivirus scanners as Trojan-Ransom.Win32.Blocker.dbud.
Once executed, the sample phones back to:
hxxp://176.31.2.155/extFiles/control8.txt
hxxp://176.31.2.155/extFiles/NewFile0008.exe
hxxp://176.31.2.155/extFiles/version.txt
hxxp://176.31.2.155/extFiles/list.txt
hxxp://176.31.2.155/extFiles/list.txt
hxxp://176.31.2.155/extFiles/buflash.xpi
hxxp://176.31.2.155/extFiles/bune10.zip
hxxp://176.31.2.155/extFiles/private/sandbox_status.php
hxxp://176.31.2.155/extFiles/extFiles/yok.txt
The files were offline in time of processing of the sample.
Related MD5s for the same served fake Adobe Flash Player:
MD5: 61f5af5d0067ea8d10f0764ff3c82066
MD5: 80b9ef43183abdd5b22482bc1cea7b36
MD5: 2da7cb838234eebbca3115fcafd6f513
MD5: 40ae8d901102ee3951c241b394eb94e9
MD5: 30118bec581f80de46445aef79e6cf10
MD5: 2de9865032e997d59c03bfd8435f1ada
MD5: fce013bec7b3651c100b6887c0a12eee
Once executed, MD5: fce013bec7b3651c100b6887c0a12eee phones back to:
hxxp://176.227.218.99/extFiles/control17.txt
hxxp://176.227.218.99/extFiles/NewFile00017.exe
hxxp://46.163.100.240/NewFile00017.exe
hxxp://176.227.218.99/NewFile00017.exe
hxxp://176.227.218.99/extFiles/extFiles/version.txt
hxxp://176.227.218.99/extFiles/extFiles/list.txt
hxxp://176.227.218.99/extFiles/extFiles/buflash.xpi
hxxp://176.227.218.99/extFiles/extFiles/bune10.zip
Files remain offline in the time of processing of the sample.




