MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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 https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/9a173136ff522559da72581aa5bfc336/43187049344.pdf In PDF document text
- http://elitvorota.ru/f/file/zesivonapijokunudoki.pdfIn PDF document text
- http://myapartment.de/web/editor/files/72406018818.pdfIn PDF document text
- https://red-adlay.com/upload/files/50400924810.pdfIn PDF document text
- http://rentbucharest.net/images/userfiles/wusalulosekuxa.pdfIn PDF document text
- http://masan315.net/board/imagefile/file/54584685765.pdfIn PDF document text
- http://logenamerica.com/userfiles/file/pojupozawomekejotogago.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/aee50ccbced4cd24bd5cfddba37c0e81/xuvewobapowiz.pdfIn PDF document text
- http://articolo17.it/siti/usr/foto/files/30525143713.pdfIn PDF document text
- http://cen7dias.es/userfiles/files/xulasizawava.pdfIn PDF document text
- http://mwbright.com/upload_fck/file/2021-9-10/20210910131754574142.pdfIn PDF document text
- http://pathtojanna.com/userfiles/files/jokenerasimenipesuzuwub.pdfIn PDF document text
- https://www.padanguparduotuve.lt/ckfinder/userfiles/files/bunowunos.pdfIn PDF document text
- http://xageunion.com/userfiles/file/61290623634.pdfIn PDF document text
- http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/4360849832.pdfIn PDF document text
- https://huanghecables.com/d/files/26437574374.pdfIn PDF document text
- http://instant-image.net/UserFiles/Site/File/59883311027.pdfIn PDF document text
- https://homecareangels.ca/files/files/files/guzekixubemezireguxoluf.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/deb2774e6ded66018e2a0e21fb5f220d/39850813510.pdfIn PDF document text
- https://infrastone.com/userfiles/files/74945615311.pdfIn PDF document text
- http://cameragiaminh.com/upload/files/rifonas.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614155ddb1954---junegolalaganajoredused.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=play+store+test+appPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#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/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD414 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC26 | 17820 bytes |
SHA-256: aa21cdbb6a33fa2abeedb9b49e9306b738739941ff860ccfab2c6433eeb611c0 |
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font_02_sfnt_off00011a43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A43 | 10164 bytes |
SHA-256: b182ab963726dd99032b9e9a4738118e3d7a2ea1b7552416a7e4d08ea7c085fc |
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