MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories, suggesting a link farm designed to host or distribute malicious files. While no scripts were directly extracted, the nature of the embedded URLs and the detection as a trojan indicate a likely intent to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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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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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://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16074a3038eb30---26229107264.pdf In PDF document text
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/d15cd5410e353b4667a4f6236f8b6f48/mezunogow.pdfIn PDF document text
- http://paulabenveniste.com/UserFiles/file/ripajonejutug.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608008b566d26---vuretimudigawene.pdfIn PDF document text
- http://stigstudiotecnico.it/userfiles/files/54451907911.pdfIn PDF document text
- http://xiaohecollege.com/d/files/76587890644.pdfIn PDF document text
- https://vivaldiroberto.com/img/files/mediafiles/file/fowarefuzusige.pdfIn PDF document text
- http://www.asslar.de/downloads/64955348896.pdfIn PDF document text
- http://barudan.hk/UploadFile/file/20210615211203596.pdfIn PDF document text
- http://www.satunatc.ac.th/ckfinder/userfiles/files/ninejo.pdfIn PDF document text
- https://alamansyria.com/userfiles/file/gupil.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/befosuxekujanofakogudoko.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160878276824a3---25295988864.pdfIn PDF document text
- http://starma.pl/files/file/libiz.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/05963e6d61f0ea3f4501e8fa72cf0198/15855201456.pdfIn PDF document text
- http://csc-021.com/userfiles/file/20210629134737_911l4z.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/f111f363aa6adc2ee3bd0d82c76c5a6c/74116162657.pdfIn PDF document text
- http://poltinik.ru/userfiles/file/97299282273.pdfIn PDF document text
- https://www.institutvzdelavani.cz/files/lipugul.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f65cba872c---1035745888.pdfIn PDF document text
- https://hosrem.org.vn/ckfinder/userfiles/files/98909217591.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16078401ce9989---80496207490.pdfIn PDF document text
- http://bandbaajabarat.com/ci/userfiles/files/65076969254.pdfIn PDF document text
- http://yachtandgulet.com/userfiles/file/burixedumep.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=basic+drawing+techniques+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_off00011199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11199 | 17432 bytes |
SHA-256: c7782d45fb1380bb2444cf9aaeb3cafbaa0c5ea7e477802f9b7a043168a7240d |
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font_01_sfnt_off00013e9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000156b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156B5 | 11116 bytes |
SHA-256: 76c33b298415b546224cde0c3840a2a3104c7f44b501e5a518f31627bd19d962 |
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