MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest this document is part of a phishing campaign, likely using spearphishing attachments as the initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://coretry.ru/uplcv?utm_term=watch+khamoshiyan+full+movie+online PDF link annotation
- http://cjmfgx.morefriendship.com/upload/files/28654050736.pdfIn PDF document text
- http://epwuae.com/userfiles/file/63552232053.pdfIn PDF document text
- http://ncfc.com.tr/ckfinder/userfiles/files/wuvonubabavedevuxi.pdfIn PDF document text
- http://2222.netsociality.com/upload/files/7037220796.pdfIn PDF document text
- http://insureavisitor.com/userfiles/file/nojib.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146ef084974f.pdfIn PDF document text
- http://paradisetourkorea.com/FileData/ckfinder/files/20210912_15FA964832334A1D.pdfIn PDF document text
- http://dintainoodle.com/uploads/files/puduwef.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/003ce72ce4ca562bbc7b832cb850edf1/jegusunawulajatu.pdfIn PDF document text
- http://celyroknaterase.sk/editor_uploads/system/files/bebamataforikowovixu.pdfIn PDF document text
- http://wingmanresearch.com/userfiles/files/24292121919.pdfIn PDF document text
- https://egyediajandekotletek.hu/mvc/userfiles/file/zakusebutogab.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/nokalajemibulaxed.pdfIn PDF document text
- http://cnsgafgl.netsociality.com/upload/files/47473697496.pdfIn PDF document text
- http://esangsok.com/upfile/files/dowemigudevon.pdfIn PDF document text
- https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210903230326.pdfIn PDF document text
- https://hasekei.jp/userfiles/file/fopazavojaros.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16145c3e830b4d---zepurunikewonuwin.pdfIn PDF document text
- http://outspokenholland.com/userfiles/fckFile/20210917000551.pdfIn PDF document text
- http://taiwangallant.com/uploads/files/202109131944222778.pdfIn PDF document text
- http://rnralpha.cz/res/file/maduxeravejosuwufinota.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_off0000ae7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE7D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC694 | 10864 bytes |
SHA-256: 09e7a660209f2d4b2fb88ba9513190dd10584e3954d46777ed0afe0cf1e1ea85 |
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font_02_sfnt_off0000df9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9A | 14704 bytes |
SHA-256: e293e8978d2d0be8f13a968d35412db71c805a217ae6d9b3b8d8d0b15bcac611 |
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