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 facilitates the redirection to a network of external PDF links, as indicated by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous unknown URLs. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or SEO poisoning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://viktorina.ledoritulys.lt/files/zopaxalikujuruviloxeru.pdf In PDF document text
- https://hoongnau.com/upload/files/xonadivufa.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/28159278776.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/65837517430.pdfIn PDF document text
- http://ryanoomen.nl/uploadimages/files/winazisafavotuxopufozupos.pdfIn PDF document text
- https://nucamsa.es/userfiles/files/rilow.pdfIn PDF document text
- http://wpchkg.com/upload/image/file/47621410627.pdfIn PDF document text
- http://epilia.com/upload/FCKEditorfile/86906610098.pdfIn PDF document text
- http://sriraghavendratemple.com/ckfinder/userfiles/files/6833033670.pdfIn PDF document text
- https://aquarell.ro/userfiles/file/busajalogiviseba.pdfIn PDF document text
- https://sieseam.org/userfiles/files/rojuxubuzuvisef.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161416a2ccb906---difusikik.pdfIn PDF document text
- https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/mamelemanavegiwipika.pdfIn PDF document text
- http://speckrepeg.by/UserFiles/files/jututakiwinutuv.pdfIn PDF document text
- http://ventiliatoriai.lt/js/ckfinder/userfiles/files/35311566547.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613d02acbf64f---neziguxukavazajemananisap.pdfIn PDF document text
- https://ximangcampha.vn/upload/files/tipedebugepuraxemubafow.pdfIn PDF document text
- https://tallerescarrion.com/uploads/file/90410950899.pdfIn PDF document text
- https://tcremich.lu/files/files/beduwiwenefivifituto.pdfIn PDF document text
- http://ticketsperiodico.com/galeria/files/bovifulabanido.pdfIn PDF document text
- https://gmt-tw.com/app/webroot/userfiles/files/febirabuwolinar.pdfIn PDF document text
- https://grupahatak.pl/admin/_fck_files/file/77255855527.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/bifefuwida.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=tethering+vs+hotspot+data+usagePDF 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_off0000ca69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA69 | 17176 bytes |
SHA-256: adf5df24059a5d84dbedc0f22dfaffefb299abd9096bc17fa0d56092b0a36a7b |
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font_01_sfnt_off0000f6ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6ED | 10752 bytes |
SHA-256: 5416ff713adee9bf41d52a3ca474f451acc8eb251a1ed90796c8d994c2cc3c02 |
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font_02_sfnt_off00010f78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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