MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious content, potentially for phishing or malware delivery. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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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 http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c93dd96cef---vabozix.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afa53d93350---70493999433.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160a857e7dc4d8---1575488528.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5f648f411---50936273172.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160a9975f43e52---1806435044.pdf
- https://plasy.com/uploads/file/26094525357.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1bdbbc3a36---lugidezakutun.pdf
- https://reaga.net/js/ckfinder/userfiles/files/pulaxulofegax.pdf
- http://amphorabeautyclub.com/campannas/file/wozimotolawurupujamota.pdf
- https://butchercurnow.com/img/shop//contents/97110265643.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb484a2fc5---womedoduneloxaditom.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/h8lt1uuvs1e9g5640it3blnm16/23603048808.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/68s9igii2oftfbejhnhhs9gkd2/13766840329.pdf
- http://hamdard.com/hamdard/app/webroot/img/ckfinder/userfiles/files/26585632342.pdf
- https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1607f245e60978---porulodabuwerepugevizibi.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/359c23ac8c2533141c7cd2f54f2f5e7d/63933718528.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099dbd6610c5---konodenin.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/6128e3dc0b952f96159b75cfb04611c2/nedewe.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/0eef62e39688bf347681e2451aa98019/88080373474.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/a51640338619dd6be8d17891359b1a70/45427892151.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/3c4535d6d18124b607699da71a52c4e9/14854958547.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/72887807f1d2d3657e0a0dc24c59e4a4/87950188282.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=tuberculation+in+pipes
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cfaf.binee527bc993b29b9f3b4f47b7acc630abdfe5c0cbd1b26f9d411e3d708ae36a98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFAF | 16440 bytes |
font_01_sfnt_off0000fa5b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA5B | 16792 bytes |
font_02_sfnt_off00011272.binf043dc1c44e04c0fbc6d7bfbe2618c5d355b4db907d76bd6c03e9b582b08498a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11272 | 10572 bytes |
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