MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary attack pattern involves directing users to external, potentially malicious, content through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://xecuoihuyhoang.com/uploads/userfiles/file/darexop.pdf In PDF document text
- http://shinex-auto.com/userfiles/file/zoletilozevakuzajex.pdfIn PDF document text
- http://asupuro.com/user_data/image//file/jasunorogusotoja.pdfIn PDF document text
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/1e5fca79f0c893c986580ef7a61e47b7/82897048662.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/19751558185.pdfIn PDF document text
- http://matstravel.ru/userfiles/file/bedotipibujelozulolanepe.pdfIn PDF document text
- http://houselandia.ru/files/24245480041.pdfIn PDF document text
- http://cbwmd.com/uploads/Files/17871171965.pdfIn PDF document text
- http://robalton.es/Albums/images/file///56988112996.pdfIn PDF document text
- http://foodchemsino.com/d/files/siwez.pdfIn PDF document text
- http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16221100502802.pdfIn PDF document text
- http://limuzine.md/userfiles/file/50976087848.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16103d64932de4---37222187001.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160c643bf139b3---vesopejizor.pdfIn PDF document text
- http://denprokhorov.ru/images/file/62944543256.pdfIn PDF document text
- http://kbchina.de/upload/gurakorepudomere.pdfIn PDF document text
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081da9671c1c---73368783750.pdfIn PDF document text
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/sefifixetezudifukor.pdfIn PDF document text
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/jqnvlnbnossjhilphuh90cb2f9/27866990860.pdfIn PDF document text
- http://agama-rc.com/upload/files/toximojolunota.pdfIn PDF document text
- https://roeveragri.ac.in/wp-content/plugins/super-forms/uploads/php/files/0e669de8d56e5a9574354a16c11e7b2d/45430906359.pdfIn PDF document text
- https://vestol.bg/files/file/58937124330.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/jujajorotedufuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=future+continuous+tense+exercises+pdfPDF 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_off0000d2cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CC | 17052 bytes |
SHA-256: 487e6ebe050a37d112b2b7e044f54e40c9e04e5c400f47a217865e14f4dec477 |
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font_01_sfnt_off0000ff57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF57 | 10584 bytes |
SHA-256: a575c9285e6dce800076b8da0f056a4ebf94c97b167a7a9cf8f6258d63dbf80c |
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font_02_sfnt_off000117a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117A6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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