MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised or disposable hosting domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the finding that the document is a link farm on potentially untrustworthy hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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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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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 http://01host.ru/userfiles/files/40266249367.pdf In PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/368c86a5bfdeb5307e69f065e956f334/46661551393.pdfIn PDF document text
- http://suseefinance.com/userfiles/file/zijorofidevi.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe4fdc2b2ff---72094096146.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ec510d9997b---feragivujosoxu.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/88438098857.pdfIn PDF document text
- http://www.aportecnica.com/imagenes/editor/file/59149798791.pdfIn PDF document text
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609eecccccb5b---67126955109.pdfIn PDF document text
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/c336b66467228a57732680f6f39285ac/buwobovabo.pdfIn PDF document text
- http://mosjob.ru/images/file/bejizivalinegu.pdfIn PDF document text
- http://umffz21.ru/admin/ckfinder/userfiles/files/zivobufekopusazolawapuwut.pdfIn PDF document text
- http://alliance-ic.ru/uploads/file/72263111337.pdfIn PDF document text
- http://unsersohn.ch/images/file/24656540281.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d148dd6e18---mudewe.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/qes8t9jg67rac6n5mdp3s8lh5i/kuxoboni.pdfIn PDF document text
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/kiwisedimexum.pdfIn PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e2eb865ff58---vuretafotelusotef.pdfIn PDF document text
- http://nothingelsematters.net/pharma/images/files/99678804646.pdfIn PDF document text
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/96d72d571d01b5d6349407ff215a057e/givikilunosenereg.pdfIn PDF document text
- http://loaamtran.com/files/usersfiles/files/85289336007.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/e5df2017c531791239f51c2d003efb17/26181035571.pdfIn PDF document text
- http://www.chatanakonci.cz/userfiles/file/mifadivekagafod.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/80cb05c0d4f53003ba35112129df2ac4/gagefoluwefigopop.pdfIn PDF document text
- http://1yunnan.com/ckfinder/userfiles/files/27780733528.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=cubic+function+graph+worksheetPDF 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_off000100a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A6 | 18580 bytes |
SHA-256: 9a9595529602437ed90f999050da7063b6227dec63ff4316598484b8074c6d97 |
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font_01_sfnt_off0001321c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1321C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00014a33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A33 | 11164 bytes |
SHA-256: beac2115b816538ea7ff1843689156e6d983d52c8ceeb0d036295b7f6b2a972c |
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