MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS uploads, suggesting a link farm or phishing lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using such links for SEO manipulation or to host malicious content. While no scripts were explicitly extracted, the nature of the URLs and the 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristic suggest the document is designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://autohausnschmidt.de/userfiles/file/24675982055.pdf In PDF document text
- https://vivaldiroberto.com/img/files/mediafiles/file/40050514215.pdfIn PDF document text
- https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb62a84683---98643461672.pdfIn PDF document text
- http://fxlcd.com/upload/file/bubefofetipakosoj.pdfIn PDF document text
- http://leadingedgecorporate.com/user_images/file/mejulawoketugugugiberopob.pdfIn PDF document text
- http://usairsprings.com/userfiles/file/16991148654.pdfIn PDF document text
- http://gesht.ru/admin/ckfinder/userfiles/files/48418352184.pdfIn PDF document text
- http://ruben.pl/ckfinder/userfiles/files/kutabuli.pdfIn PDF document text
- http://studiomontironi.eu/userfiles/files/gulixoxuwak.pdfIn PDF document text
- https://brigitte-farner.ch/userfiles/files/74554567983.pdfIn PDF document text
- http://atut-biuro.com/uploaded/file/jexebulogi.pdfIn PDF document text
- https://ccskin.com/geektic/files/xilakekisama.pdfIn PDF document text
- https://evergreencans.com/userfiles/file/loruzavajukarawejufijax.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/7941cded307627cc5707c46a41dafd81/zetirejovezolevivamej.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/fipotorufadulu.pdfIn PDF document text
- https://bnbcostaverde.it/userfiles/file/tosurineluzimo.pdfIn PDF document text
- http://ipublicity.cz/data/file/biwanovusebawatulu.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/209f5efa015749f4d959409ddbdebd48/potubigoxo.pdfIn PDF document text
- http://commandhousecreations.com/uploads/files/nugaxufuweja.pdfIn PDF document text
- http://transporteslaplata.com/imagenes_web/file/88500132507.pdfIn PDF document text
- http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/fisalanuluzakuzekig.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=install+android+on+smartphonePDF 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_off0000df29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF29 | 10608 bytes |
SHA-256: 047c5bc166d5a80975432d9fd4eb6777681f31a395a4069924574fe30843e7f1 |
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font_01_sfnt_off0000f725.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF725 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F37 | 18328 bytes |
SHA-256: 0ac2c64e5094790ec0f90ff4c692b5a5970e8be2de9054a1ca260ed18d8941e2 |
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