MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to PDF files hosted on various domains. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a malicious link farm designed to distribute further malware or conduct phishing. The embedded JavaScript, while not directly analyzed for specific actions, is a common vector for exploitation in PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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.ruchya.com.tw/upload/files/83669535339.pdf In PDF document text
- https://uetty.xyz/js/ckfinder/userfiles/files/zoxumetexanatatademez.pdfIn PDF document text
- https://beaszemin.com/files/33303258313.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608878a331f9b---81496190553.pdfIn PDF document text
- http://alemotta.com/resources/original/file/96156333263.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072a638de5a4---32359445461.pdfIn PDF document text
- https://media-get.ru/userfiles/files/dezivipuburoke.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/tixorusow.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/e150238aa90138381cdd93336778e5e3/37338614485.pdfIn PDF document text
- http://train-in-japan.com/images/blog//file/tafemise.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607202a5ebc89---xirutazusilezoro.pdfIn PDF document text
- http://thegioioto.store/upload/files/14023937921.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed47f7dbdf7---zexibefomenugigifiluvawox.pdfIn PDF document text
- http://stonepigments.com/userfiles/file/42220693243.pdfIn PDF document text
- http://allycatering.com/userfiles/82959427802.pdfIn PDF document text
- https://swift-tw.com/lcc/upload/files/52902365356.pdfIn PDF document text
- http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/puvanakiluxinuloxufupuli.pdfIn PDF document text
- https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609444007cda4---luzabugobitibu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=archetypal+story+definitionPDF 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_off0000dde6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE6 | 18916 bytes |
SHA-256: c5bb8c8e1ab1e11d0b438a02e8c4ce49348fbba2253f4006c39ce4d188a94c2f |
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font_01_sfnt_off00010f17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F17 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001272e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1272E | 10812 bytes |
SHA-256: 4feb8ac1de0aa9a7842141eb65abf2c80fff8e5caf74d65081203b54b91c9e51 |
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