Malicious PDF — malware analysis report

Static analysis result for SHA-256 f01e56bf4fdeb799…

MALICIOUS

PDF

596.2 KB Created: 2010-03-22 12:14:01 -04:00 Authoring application: Adobe LiveCycle Designer ES 8.2 First seen: 2026-05-09
MD5: c66396e556731bc354f5bdec9bd94fe0 SHA-1: b95c1405d108fdc8c3e3e1802230c9772d7c889c SHA-256: f01e56bf4fdeb799f24fa4dff67a64b76593a0fb5a37e57f6231b5a535fa2577
78 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059.001 PowerShell

The PDF contains embedded JavaScript and an embedded file, strongly suggesting it is designed to exploit vulnerabilities and download further malicious content. The ML classifier also flagged this PDF as malicious. The embedded file 'embedded_file_obj0249.bin' is likely the second-stage payload. No specific family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6561

Heuristics 9

  • JavaScript action low 1 related finding PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • Embedded script payload in PDF stream info PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ocsp.verisign.com0 In PDF document text
    • http://www.monotype.comMonotypeIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xfa/promoted-desc/In PDF document text
    • http://cgi.adobe.com/special/acrobat/updateReferenced by PDF JavaScript
    • http://www.xfa.org/schema/xfa-form/2.8/In PDF document text
    • http://ns.adobe.com/xdp/In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.4/In PDF document text
    • http://www.w3.org/1999/xhtmlIn PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://ns.adobe.com/xfdf/In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://www.xfa.org/schema/xci/2.8/In PDF document text
    • http://www.xfa.org/schema/xfa-locale-set/2.1/In PDF document text
    • http://crl.verisign.com/ThawteTimestampingCA.crl0In PDF document text
    • http://crl.verisign.com/tss-ca.crl0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/CodeSignPCA2.crl0OIn PDF document text
    • http://www.microsoft.com/pki/certs/CodeSignPCA2.crt0In PDF document text
    • http://www.microsoft.com/typographyIn PDF document text
    • https://www.verisign.com/rpaIn PDF document text
    • http://ocsp.verisign.com/ocsp/status0In PDF document text
    • https://www.verisign.com/rpa0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/CodeSignPCA.crl0In PDF document text
    • http://www.monotype.com/html/mtname/ms_arial.htmlhttp://www.monotype.com/html/mtname/ms_welcome.htmlhttp://www.monotype.com/html/type/license.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 21

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0013.bin pdf-embedded-file PDF EmbeddedFile object 13 at offset 0x68C 1909 bytes
SHA-256: 707681ab686c938b2cfcc301c1476436d05eb4b637a0ceb3f84ce5a46a51ae40
embedded_file_obj0075.bin pdf-embedded-file PDF EmbeddedFile object 75 at offset 0x5183 56 bytes
SHA-256: 4a60a9864cdf7382475d51051a03fdc43b32c31eb508893ccfccece34957f9f1
embedded_file_obj0188.bin pdf-embedded-file PDF EmbeddedFile object 188 at offset 0x2A9BD 86 bytes
SHA-256: f7ee3ef2f8f35d669a6c2b8b0b0ee89655bbc3d04b107a8d22531830f6fc28a1
embedded_file_obj0249.bin pdf-embedded-file PDF EmbeddedFile object 249 at offset 0x3215D 289965 bytes
SHA-256: 07f6a17a65d691d693c17a8d8f022b21c9d1567b2e64a29155f3ba7cc4aecceb
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 5 long base64-like blob(s).
embedded_file_obj0309.bin pdf-embedded-file PDF EmbeddedFile object 309 at offset 0x40A04 1393 bytes
SHA-256: ea932487190618598b516984a8a2f0ec8738d25384d26a49f55db2677e2df0be
embedded_file_obj0370.bin pdf-embedded-file PDF EmbeddedFile object 370 at offset 0x458C5 80 bytes
SHA-256: 2ebdd7efeaa1190ff6bad8cbd649b313e3969564018f204e7385b97c2fab1e19
embedded_file_obj0545.bin pdf-embedded-file PDF EmbeddedFile object 545 at offset 0x8964E 1616 bytes
SHA-256: bc3195a0f6975c7414a17957c94a56dc7646b92934b0478c8ac7a9ab4f406fd1
embedded_file_obj0605.bin pdf-embedded-file PDF EmbeddedFile object 605 at offset 0x8F818 2423 bytes
SHA-256: 2d58413fda1ff20c994606823bf49e41194612c0137b6315e50fa7bdc01f1e09
javascript_obj0042_000.js pdf-javascript-stream PDF /JS object 42 at offset 0x2C1A 1532 bytes
SHA-256: f574e4d51594d1a8fd22e125b109b827c437aa898edc78babb62dbb93f8744f8
Preview script
First 1,000 lines of the extracted script
if (typeof(xfa_installed) == "undefined" || typeof(xfa_version) == "undefined" || xfa_version < 2.1)
{
   if (app.viewerType == "Reader")
   {
      if (ADBE.Reader_Value_Asked != true)
      {
         if (app.viewerVersion < 6.0)
         {
            if (app.alert(ADBE.Viewer_Form_string_Reader_5x, 1, 1) == 1)
               this.getURL(ADBE.Reader_Value_New_Version_URL + ADBE.SYSINFO, false);
            ADBE.Reader_Value_Asked = true;
         }
         else if (app.viewerVersion < 7.0)
         {
            if (app.alert(ADBE.Viewer_Form_string_Reader_601, 1, 1) == 1)
               app.findComponent({cType:"App", cName:"Reader7", cDesc: ADBE.Viewer_string_Update_Reader_Desc});
            ADBE.Reader_Value_Asked = true;
         }
         else
         {
            if (app.alert(ADBE.Viewer_Form_string_Reader_6_7x, 1, 1) == 1)
               app.findComponent({cType:"Plugin", cName:"XFA", cDesc: ADBE.Viewer_string_Update_Reader_Desc});
            ADBE.Reader_Value_Asked = true;
         }
      }
   }
   else
   {
      if (ADBE.Viewer_Value_Asked != true)
      {
         if (app.viewerVersion < 7.0)
            app.response({cQuestion: ADBE.Viewer_Form_string_Viewer_Older, cDefault: ADBE.Viewer_Value_New_Version_URL + ADBE.SYSINFO, cTitle: ADBE.Viewer_string_Title});
         else if (app.alert(ADBE.Viewer_Form_string_Viewer, 1, 1) == 1)
            app.findComponent({cType:"Plugin", cName:"XFA", cDesc: ADBE.Viewer_string_Update_Desc});
         ADBE.Viewer_Value_Asked = true;
      }
   }
}
javascript_obj0103_001.js pdf-javascript-stream PDF /JS object 103 at offset 0x61CD 2795 bytes
SHA-256: 826c5622c798d67e5281cca7e05933dddc90ccdcb0a6177c9f7d06f11bef8f7f
Preview script
First 1,000 lines of the extracted script
if (typeof(this.ADBE) == "undefined")
   this.ADBE = new Object();
ADBE.LANGUAGE = "ENU";
ADBE.Viewer_string_Title = "Adobe Acrobat";
ADBE.Viewer_string_Update_Desc = "Adobe Interactive Forms Update";
ADBE.Viewer_string_Update_Reader_Desc = "Adobe Reader 7.0.5";
ADBE.Reader_string_Need_New_Version_Msg = "This PDF file requires a newer version of Adobe Reader. Press OK to download the latest version or see your system administrator.";
ADBE.Viewer_Form_string_Reader_601 = "This PDF form requires a newer version of Adobe Reader. Although the form may appear to work properly, some elements may function improperly or may not appear at all. Press OK to initiate an online update or see your system administrator.";
ADBE.Viewer_Form_string_Reader_Older = "This PDF form requires a newer version of Adobe Reader. Although the form may appear to work properly, some elements may function improperly or may not appear at all. Press OK for online download information or see your system administrator.";
ADBE.Viewer_Form_string_Viewer_601 = "This PDF form requires a newer version of Adobe Acrobat. Although the form may appear to work properly, some elements may function improperly or may not appear at all. Press OK to initiate an online update or see your system administrator.";
ADBE.Viewer_Form_string_Viewer_60 = "This PDF form requires a newer version of Adobe Acrobat. Although the form may appear to work properly, some elements may function improperly or may not appear at all. For more information please copy the following URL (CTRL+C on Win, Command-C on Mac) and paste into your browser or see your system administrator.";
ADBE.Viewer_Form_string_Viewer_Older = "This PDF requires a newer version of Acrobat. Copy this URL and paste into your browser or see your sys admin.";
ADBE.Viewer_Form_string_Reader_5x = "This PDF form requires a newer version of Adobe Reader. Without a newer version, the form may be displayed, but it might not work properly. Some form elements might not be visible at all. If an internet connection is available, clicking OK will open your browser to a web page where you can obtain the latest version.";
ADBE.Viewer_Form_string_Reader_6_7x = "This PDF form requires a newer version of Adobe Reader. Without a newer version, the form may be displayed, but it might not work properly. Some form elements might not be visible at all. If an internet connection is available, clicking OK will download and install the latest version.";
ADBE.Viewer_Form_string_Viewer = "This PDF form requires a newer version of Adobe Acrobat. Without a newer version, the form may be displayed, but it might not work properly. Some form elements might not be visible at all. If an internet connection is available, clicking OK will download and install the latest version.";
javascript_obj0398_002.js pdf-javascript-stream PDF /JS object 398 at offset 0x46CBD 870 bytes
SHA-256: 4a1aca004cf20431c9a66dce85404a6411a54d881a6c257882260ffc972a13eb
Preview script
First 1,000 lines of the extracted script
if (typeof(ADBE.Reader_Value_Asked) == "undefined")
   ADBE.Reader_Value_Asked = false;
if (typeof(ADBE.Viewer_Value_Asked) == "undefined")
   ADBE.Viewer_Value_Asked = false;
if (typeof(ADBE.Reader_Need_Version) == "undefined" || ADBE.Reader_Need_Version < 7.0)
{
   ADBE.Reader_Need_Version = 7.0;
   ADBE.Reader_Value_New_Version_URL = "http://cgi.adobe.com/special/acrobat/update";
   ADBE.SYSINFO = "?p=" + app.platform + "&v=" + app.viewerVersion + "&l=" + app.language + "&c=" + app.viewerType + "&w=" + "XFA1_6";
}
if (typeof(ADBE.Viewer_Need_Version) == "undefined" || ADBE.Viewer_Need_Version < 7.0)
{
   ADBE.Viewer_Need_Version = 7.0;
   ADBE.Viewer_Value_New_Version_URL = "http://cgi.adobe.com/special/acrobat/update";
   ADBE.SYSINFO = "?p=" + app.platform + "&v=" + app.viewerVersion + "&l=" + app.language + "&c=" + app.viewerType + "&w=" + "XFA1_6";
}
xfa_image_rawvalue_000.tif pdf-xfa-image-tiff XFA image/rawValue TIFF payload near offset 0x328A0 95802 bytes
SHA-256: e8697998a0aab979fdcedb5bec6720cde36d7bf3ce6637aa025ca0943ade1509
stream_024_off0000c072.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC072 178848 bytes
SHA-256: 3849aaa28914e08e608524e4a3f1068792e87faf78ef933525771425768f0a82
stream_087_off00051a9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51A9C 352198 bytes
SHA-256: 1e8564d3d89047875dccaa98279599de9d7ddf77240906041f1156ba8edf3315
stream_104_off0008baf8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8BAF8 30572 bytes
SHA-256: d5cb5eaa0ae2be42691a0b907f28365ec89e12abe112f088d959ce7bf58059e5
objstm_0195_00.bin pdf-objstm-decoded PDF /ObjStm 195 0 obj (inflated) 29185 bytes
SHA-256: 7f6501e96871f789be3bb0ffe4a9d085f596427d6118b4ace57cd157bbe59d13
font_00_sfnt_off000071ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EF 26153 bytes
SHA-256: 7c417a1930ba82db8ca23330edc1d88c3bef0aeaf548d0b5207c32d21fc45466
font_01_sfnt_off00024e98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24E98 40786 bytes
SHA-256: 9c1736778d8905f958b5eb079ce943866407373d6f5eecd8e7b3d3dd5b4ad24d
font_02_sfnt_off0002e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E551 21079 bytes
SHA-256: 37cf5ae2c58a58613ffb3685e18a1c0192f8075d1fa35c9697c1902f6bff6daf
font_03_sfnt_off0004b93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B93B 30053 bytes
SHA-256: df57e7dbe4730a1cfc953898017fa7a296dd490ca6175444343e039e09a88c93
font_04_sfnt_off00084ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DDB 24856 bytes
SHA-256: d1565d3e4e0d88b58ed08357eac343c8004d1ba06c8eacf004ca1e972d58397d

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