MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for exploiting vulnerabilities or redirecting users. Several heuristics indicate the PDF is part of a link farm pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/e4qqs0eq4mi5nber4c60e83men/28512762489.pdf In PDF document text
- https://senesi-sklad.cz/userfiles/file/53673131514.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b1bdb67303d---rafijupewovuvijenozanoleb.pdfIn PDF document text
- https://goacetours.com/ckfinder/userfiles/files/66750850444.pdfIn PDF document text
- http://henca.com/files/details/file/13005653407.pdfIn PDF document text
- http://uk-finansist.ru/userfiles/file/5613621764.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606ecb3fbc390---28430287352.pdfIn PDF document text
- http://condominiobrisasdelnorte.com/userfiles/file/78270047965.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/7942411678.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1609705fce1808---lubumolula.pdfIn PDF document text
- http://fd-health.com/upload/ckeditor/files/gavufixadesox.pdfIn PDF document text
- https://qqhanoman.com/contents//files/75431802741.pdfIn PDF document text
- http://docando.es/js/ckfinder/userfiles/files/dudonuk.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/4335007a7fa9c0677df316ff70c463e0/68014317416.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/3572971037.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/cfe0b42b485adfb6b8d19a4b966e6821/48472734805.pdfIn PDF document text
- http://longarmacademy.net/fckeditor/userfiles/file/xesal.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=sample+marketing+plan+for+new+product+pdfPDF 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_off0000d555.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD555 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED67 | 16712 bytes |
SHA-256: b4d9dc979573319691aa47c05bcb4a764363a6bc475d50100590974919288969 |
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font_02_sfnt_off000118f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118F8 | 11148 bytes |
SHA-256: 24290f992f6be27caed9a72887faaee99d124173df3a139589df2c0821b916f2 |
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