MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external URIs and links to potentially compromised websites, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the PDF structure itself facilitates redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://medvor.ru/uplcv?utm_term=chiavi+quaderno+degli+esercizi+nuovo+progetto+italiano+2 PDF link annotation
- https://travelworld.ro/userfiles/file/76161172748.pdfIn PDF document text
- https://rimi.sk/userfiles/file/34237803788.pdfIn PDF document text
- http://btsoft.vn/uploads/files/29351055519.pdfIn PDF document text
- http://vet-spb.com/userfiles/file/jefezexuz.pdfIn PDF document text
- http://sunrui-ti.com/d/files/gedelobosejaxisapej.pdfIn PDF document text
- http://hstairan.com/FCKeditor/editor/filemanager/connectors/php/userfiles/file/5384178228.pdfIn PDF document text
- http://abdon.madteam.net/ckfinder/userfiles/files/lufakulaxavejajowepedip.pdfIn PDF document text
- https://bczenekar.hu/files/file/60298814252.pdfIn PDF document text
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/c520dea2a0b0cf1f7bc0e619e1d217cb/3798569499.pdfIn PDF document text
- https://alcoquimicos.com/ckfinder/userfiles/files/sagojekejojaj.pdfIn PDF document text
- https://at1-turbo-j3t.com/contents/files/jiporulobutapuz.pdfIn PDF document text
- http://radecznica.pl/userfiles/file/80199801888.pdfIn PDF document text
- http://bitree.net/ckfinder/userfiles/files/gijaxitejotozeg.pdfIn PDF document text
- http://ginzaramen.us/uploads/files/luxanedetoninoledi.pdfIn PDF document text
- http://jainfarms.com/uploads/rabodakezozuxovuzivodesal.pdfIn PDF document text
- http://tsrmmessina.it/userfiles/files/62423315607.pdfIn PDF document text
- http://dailymaydemtien.com/userfiles/files/tibina.pdfIn PDF document text
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613354e132347---gesovijaduzomadefutu.pdfIn PDF document text
- http://ayurveda-shiatsu-nice.com/upload/files/jibopulogezuxoteperuselo.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390fd93bb94---6054653989.pdfIn PDF document text
- http://educaholistica.com/resources/img/imagesck/files/zitawumuburaxemolup.pdfIn PDF document text
- http://zussobrance.sk/grafika/dokumenty/17919235902.pdfIn PDF document text
- https://aurorabersinar2.com/contents/files/88222541956.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://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_off0000d8c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8C7 | 20756 bytes |
SHA-256: eaaebe4f5438576a868c7120e5c76b2b29a782e8611bb415a525f68a55f9c65d |
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font_01_sfnt_off00010ed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ED0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E7 | 11316 bytes |
SHA-256: c7582215161127858556c6f6319a960f9ccb87c2e96b91505f4e9978511c4c3a |
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