MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://yapluka-services.fr/userfiles/file/93726353512.pdf In PDF document text
- http://wwstationery.com/files/file/95823247853.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/kuserem.pdfIn PDF document text
- http://dakdekkersindex.nl/images/uploads/ruvuvevoba.pdfIn PDF document text
- http://yule-sign.com/upload/editor/file/20210903225035.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1614317622c414---35058015482.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/85537417459.pdfIn PDF document text
- https://galedo.cz/www/data/cms_files/files/guzimovazokebufurubejomo.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/36165512f2233fd2e61ac4b023295166/lonopupikarujulirat.pdfIn PDF document text
- https://machnhaduong.com/images/uploads/files/kegatobewozugasab.pdfIn PDF document text
- http://www.salac.cz/ckfinder/userfiles/files/48120746103.pdfIn PDF document text
- http://www.truca-taoules.com/ckfinder/userfiles/files/20778127150.pdfIn PDF document text
- http://richardchong.com/userfiles/files/76469723719.pdfIn PDF document text
- https://marblobaths.ph/app/webroot/img/files/vamabajigerifotopena.pdfIn PDF document text
- https://aedwea.com/upload/foto/romurezigowobipinolilim.pdfIn PDF document text
- http://showpalmedical.com/userfiles/bovulimapafatilajimotig.pdfIn PDF document text
- https://kudamatsu.org/userfiles/file/zudivojemafavu.pdfIn PDF document text
- https://rawoctane.com/uploads/file/68468399446.pdfIn PDF document text
- https://k31szmq42-nu28.com/contents/files/88905007837.pdfIn PDF document text
- http://www.pantonerestauri.com/ckfinder/userfiles/files/85140382327.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613f7c44ee0fa---84402160312.pdfIn PDF document text
- http://patp1ryb.ru/media/file/zukotemofiwofufikilimusu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=diventare+root+su+androidPDF 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_off0000bec1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEC1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d6d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6D3 | 17208 bytes |
SHA-256: 0cbcd31724adcf408dc833d53390b60987c3bf5b7a7135df1c6d75a621db800d |
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font_02_sfnt_off000102f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102F1 | 10364 bytes |
SHA-256: 47f5eb06fc84e25f5e0ec433b5fc5379a0915f300a556df232ee1e926e02123b |
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