MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM and the numerous external URLs suggest a phishing or link-farming scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 6
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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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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://crewmak.ru/uplcv?utm_term=english+file+b1+fourth+edition+pdf+free+download PDF link annotation
- http://portableandcool.com/files/files/dufolari.pdfIn PDF document text
- http://eichler-kammerer.de/nazarimenidojunaka.pdfIn PDF document text
- https://vonia.mikludava.lt/images/files/binopi.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/boxebexipiki.pdfIn PDF document text
- http://tdbm.vn/upload/files/64913272653.pdfIn PDF document text
- http://wonderpanel.com/app/webroot/img/file/8098969504.pdfIn PDF document text
- http://2990592.ru/ckfinder/userfiles/files/51403671974.pdfIn PDF document text
- https://limblength-sldf.com/userfiles/file/xomadabefololanawet.pdfIn PDF document text
- http://www.tecnobor.com/ckfinder/userfiles/files/sikejajunewanasafubo.pdfIn PDF document text
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/8d9abebc7874df8482a58e3523812256/64953510237.pdfIn PDF document text
- http://phonphangschool.com/upload/files/sesexipeximewebo.pdfIn PDF document text
- http://stcforanebanglore.smcim.com/www/js/ckfinder/userfiles/files/25910595078.pdfIn PDF document text
- https://profesa.net/userFilesfile/simofev.pdfIn PDF document text
- https://quangcaomattroi.com/uploads/news_file/43594799434.pdfIn PDF document text
- http://shahgrp.com/uploads/jonajazakifirisudifota.pdfIn PDF document text
- http://www.radio-kum.si/data/files/kezopajibikuzon.pdfIn PDF document text
- https://scmsgroup.org/ckfinder/userfiles/files/xitav.pdfIn PDF document text
- https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/88628412963.pdfIn PDF document text
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/95541749289.pdfIn PDF document text
- https://nutstudio.it/userfiles/file/ladazagak.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/9feb69e60cf8af46126db85ad0b54edc/nosixavusubelovesoruper.pdfIn PDF document text
- http://zanethompson.com/userfiles/file/30732548701.pdfIn PDF document text
- http://kartinatv.org/uploads/files/54252287026.pdfIn PDF document text
- http://bowenlawmt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/93119092225.pdfIn PDF document text
- http://gojjang.com/uploads/files/13211290050.pdfIn PDF document text
- https://maffart-guy.com/userfiles/file/28131926166.pdfIn PDF document text
- http://autolavaggiocraparotta.it/userfiles/files/31110212357.pdfIn PDF document text
- https://camelcarpet.org/d/files/zeliredugodu.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_off0000cfee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFEE | 18652 bytes |
SHA-256: 0143bfbfa21c8908176581ee42c096cbaddb47f562c4115ac78686f79f146e12 |
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font_01_sfnt_off000100d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100D3 | 11136 bytes |
SHA-256: 9a836f0cb8647afdd7af544b69076fe41c753d109dc798a7372537df695ea863 |
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font_02_sfnt_off00011a73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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