MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and multiple external links, one of which is algorithmically generated and points to a suspicious domain, suggesting a phishing or malware delivery attempt. The PDF's structure and numerous links to potentially disposable domains indicate it's designed to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://lolakarimova.uz/ckfinder/userfiles/files/28815116866.pdf In PDF document text
- http://thanhnhomdinhhinh.net/uploads/files/migetumipiviwasaratedi.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/hstcga021656bcd82t99ta51rt/26917583081.pdfIn PDF document text
- https://warungmimpishio2.com/contents/files/genexizewimapase.pdfIn PDF document text
- http://zs-g.jp/app/webroot/js/ckfinder/userfiles/files/95708916574.pdfIn PDF document text
- http://www.multigacos.com/admin/uploaded/fck/file/pekavujegululiw.pdfIn PDF document text
- https://biographiewerkstatt-singer.de/userfiles/file/lolasurekifonituropago.pdfIn PDF document text
- https://conexkarvan.com/cache/fck_files/file/tiledadupuwimopef.pdfIn PDF document text
- https://bangvetthuong.com/luutru/files/51837163766.pdfIn PDF document text
- http://alpinedelhi.com/userfiles/files/33384194855.pdfIn PDF document text
- https://drlalashow.com/php/billboard/uploads/file/toxikexipusonedi.pdfIn PDF document text
- https://www.solucionaesp.com/ckfinder/userfiles/files/88474327904.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/81607921045.pdfIn PDF document text
- https://smg.bid/ckfinder_userfiles/files/45319844983.pdfIn PDF document text
- https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210918013617.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/40928593788.pdfIn PDF document text
- http://vcelari.naceradec.cz/includes/ckfinder/userfiles/files/pimofalogutotaxij.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/5653dea91a5ecdf326d400b9d3f3e8b0/5804123112.pdfIn PDF document text
- https://milosislandrooms.gr/userfiles/file/84799100487.pdfIn PDF document text
- https://hotelite.in/userfiles/file/73977618982.pdfIn PDF document text
- http://catherine-massage.com/ckfinder/userfiles/files/34910368533.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=desarrollo+humano+una+perspectiva+del+ciclo+vital+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_off0000bb70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB70 | 16892 bytes |
SHA-256: b865ae0db1fd6cc9f3d67140ac7e20a851f8329460a8a3dd69864d6619d006c5 |
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font_01_sfnt_off0000e618.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE618 | 11052 bytes |
SHA-256: 250287eac818034bb42b2b0e171186e471b07783627b2fc402d45bb31a051ec9 |
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font_02_sfnt_off0000ffae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFAE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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