MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. This script likely redirects the user to external URLs, as indicated by the PDF_URI and EMBEDDED_URL heuristics. The numerous external links found, many pointing to PDF files on distinct hosts, suggest a link farm designed to distribute further malicious content or conduct phishing. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://parateam.cz/file/zifuwalinesateviwe.pdf In PDF document text
- http://sms-dk.com/FileData/ckfinder/files/20210922_99145C05B14F8DD3.pdfIn PDF document text
- http://riggi.ru/userfiles/file/sitibagejer.pdfIn PDF document text
- http://ntweac.edu.hk/admin/ckfinder/userfiles/files/1881370186.pdfIn PDF document text
- https://nepalonlineexam.tisaracademy.com/userfiles/files/2939271164.pdfIn PDF document text
- http://taketty.xyz/js/ckfinder/userfiles/files/245875305.pdfIn PDF document text
- https://spa-salon.ru/ckfinder/userfiles/files/tomumev.pdfIn PDF document text
- http://www.globalnautique.nl/upload/files/81455062205.pdfIn PDF document text
- http://hugslock.com/app/webroot/img/files/wivojezisifumo.pdfIn PDF document text
- http://chataphan.com/file_media/file_image/file/livukelunufavaj.pdfIn PDF document text
- https://decoveinvestment.com/userfiles/file/muguwi.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/3afca9e73ddcccd168c900d4d334da8c/37877852904.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/91610521051.pdfIn PDF document text
- http://rjt1.org/upload/files/31053153917.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/sifuzere.pdfIn PDF document text
- http://adhdesign.de/userContent/files/20210906005936-44888537944.pdfIn PDF document text
- http://www.centrosanmarco.eu/img/news/files/25205825410.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/wezedokimate.pdfIn PDF document text
- https://edinburghpools.com/contents/files/muwovodisal.pdfIn PDF document text
- http://unicaconsultoriarh.com/images/files/gemelipesele.pdfIn PDF document text
- https://estduquebec.com/scripts/php/xenocode/lib/ckfinder/userfiles/files/dugil.pdfIn PDF document text
- http://leinerpakgelatine.com/survey/userfiles/files/52921389065.pdfIn PDF document text
- https://corumosmanlimakina.com/js/ckfinder/userfiles/files/muliwixolifaxakedik.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+turn+safesearch+off+on+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_off0000b331.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB331 | 17592 bytes |
SHA-256: 28bf6eafb7a1b774e9d82d2bebd1dc98ec975f5ce3d79cfde00af4b94c757adc |
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font_01_sfnt_off0000e0c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f8db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DB | 10704 bytes |
SHA-256: 171d3c3278d747bb1d30580600991b942a4fb729eab7a84b998031680b5710e5 |
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