MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream, which is a common technique for executing malicious code within documents. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous extracted URLs suggest a phishing or spam campaign aiming to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://ohcsi.com/ckfinder/userfiles/files/burezobo.pdf In PDF document text
- http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/gulijakilovedufemezi.pdfIn PDF document text
- http://guidesdugrandlarge.fr/images/import/file/xotogigitef.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/87978281226.pdfIn PDF document text
- http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/97726195817.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/reubj041trk8uqripsnuum338n/93458216624.pdfIn PDF document text
- http://bjsddesign.com/filespath/files/20210911143753.pdfIn PDF document text
- https://limsurempat.com/contents/files/27534737796.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///98488532600.pdfIn PDF document text
- http://alphanaturehk.com/userfiles/file/70327300131.pdfIn PDF document text
- http://tangiahoang.vn/Images_upload/files/27834744222.pdfIn PDF document text
- http://vkts.se/userfiles/file/pedixopisofejoj.pdfIn PDF document text
- https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/lakikalokusoraradisarinu.pdfIn PDF document text
- http://seanmore.com/userData/board/file/88825576530.pdfIn PDF document text
- http://3asoft.vn/img/files/47874894683.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/42932620056.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/matanafe.pdfIn PDF document text
- https://lawtutors.co.uk/js/ckfinder/userfiles/files/fenedepitezisixitija.pdfIn PDF document text
- https://ajansnigde.com/resimler/files/47378435629.pdfIn PDF document text
- http://ih-consultant.com/ckfinder/userfiles/files/damagej.pdfIn PDF document text
- https://petpetmates.com/files/editor/file/tefifeluju.pdfIn PDF document text
- https://huanghecables.com/d/files/rolerikokavubegufuvi.pdfIn PDF document text
- https://tatvan.in/userfiles/file/zeziwumojegoxe.pdfIn PDF document text
- http://bannhuaduong.net/upload/files/moxuvoro.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/kerimugegolafozoxupobof.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=stunt+lightsaber+combat+for+beginners+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_off0000d132.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD132 | 17004 bytes |
SHA-256: 7924b42e47350e39e5a7b98c9a5002b05c55d5186a783c43415895484b36c9c3 |
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font_01_sfnt_off0000fc95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC95 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000114ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114AC | 11380 bytes |
SHA-256: 9427ea9f254e9cd8d1578c64c571d36634caf49958eb0394e98b742491abfee5 |
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