MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links to compromised WordPress sites, disguised as 'medical research papers'. These links likely serve as a lure to download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, and the structure suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9216b297b---wupuvibomoroxuxi.pdf In PDF document text
- http://lorofilmes.com/Uploads/ckfinder/userfiles/files/3741562465.pdfIn PDF document text
- http://premium-t.info/files/files/92593972507.pdfIn PDF document text
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3aad6af082---zakuvesodufimis.pdfIn PDF document text
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3314101cf---rujasubagasakisazepeboduk.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/fk9n9b1p099aj9gntoloimg436/bowodukozeburamagimaxi.pdfIn PDF document text
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/p7c7lomlueaol9a316r25jgjup/35041625773.pdfIn PDF document text
- https://shoppingplanet.ro/ckfinder/userfiles/files/67562866198.pdfIn PDF document text
- http://salkim.com/userfiles/file/23979578552.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f1c4228bb---xanelavapikiteretobodonum.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/43f33d0c79b7656e13d98c01f172db20/bagadurukesinak.pdfIn PDF document text
- https://eyetracking.pl/userfiles/file/fegaporarujur.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a58fef15c---48539798273.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/u9fq3a3tro1po8kk2757oqkos2/rutabojojobelaboxugut.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/b924f4d4511087fa6364e013450ebe80/54657090100.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=medical+research+papers+pdfPDF link annotation
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/e2b40c7f2582f6815d8b0d04ac1492ba/nipalojesekatumirabi.pdfIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC91 | 5248 bytes |
SHA-256: bd19fab06c2af868ed2da9dc05c7243433589e742862b881807238157f6b99ed |
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font_01_sfnt_off00010e6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E6B | 10912 bytes |
SHA-256: 1b3b87a4641a25f85dc1655c6400d4dd4d2f4035db0ff1376f4dee52196cb12a |
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