MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. The 'Browser extension / update installation lure' heuristic strongly suggests a social engineering tactic to trick users into installing malware. The document contains numerous external URIs hosted on disposable domains, likely part of a link farm designed to obscure the true malicious destination. No scripts were extracted, but the overall structure and heuristics point to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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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://smidgel.ru/uplcv?utm_term=iphone+8+voicemail+notification+not+working PDF link annotation
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/88ce86bec341a08150bfa4d6711829d1/jovukotujalovajawi.pdfIn PDF document text
- http://studiofranzoni.eu/userfiles/files/timexipagotidoboni.pdfIn PDF document text
- http://graylegalservices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xoboxopexesuwalojageliz.pdfIn PDF document text
- https://rsun.pro/admin/ckfinder/userfiles/files/zegesozinoxezanutoto.pdfIn PDF document text
- http://tnslib.su/userfiles/files/rujurezabu.pdfIn PDF document text
- https://cristalparkhotel.com.ve/ckfinder/userfiles/files/gidaropasipupavovoderotup.pdfIn PDF document text
- http://manuale.aziendasulweb.it/userfiles/files/9298389432.pdfIn PDF document text
- http://tdbakademi.org/userfiles/files/silixugevetojoz.pdfIn PDF document text
- http://snuhonors.com/userfiles/file/98133611090.pdfIn PDF document text
- http://mcutech.net/files/22348677673.pdfIn PDF document text
- http://kingalbertltd.com/uploadedfiles/file/88963912729.pdfIn PDF document text
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/b49e646a4928d91f52a5db51854a3cb5/80342723744.pdfIn PDF document text
- https://lasanisports.com/files/40683554769.pdfIn PDF document text
- http://www.donboscovizag.org/images/files/92825289336.pdfIn PDF document text
- http://tradotel-riviera.com/file/duxapefadevaw.pdfIn PDF document text
- https://www.totspotdaynursery.co.uk/ckfinder/userfiles/files/nujuvemugisedowofakoko.pdfIn PDF document text
- https://wigs4less.net/nbloom/fckuploads/file/23603008312.pdfIn PDF document text
- https://dotcomtravelegypt.com/userfiles/files/53768060049.pdfIn PDF document text
- http://gift-founder.com/archive/upload/files/45956268162.pdfIn PDF document text
- https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/77207970440.pdfIn PDF document text
- https://voziky-paletove.cz/mctree.cz/pictures/other/files/noxanewiniberimogilamixov.pdfIn PDF document text
- http://wsp.pl/userfiles/file/46025819681.pdfIn PDF document text
- https://curtain.jinware.com/upload/files/fezinixajozuzaruvafi.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_off0000d9eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9EB | 11160 bytes |
SHA-256: 5244eb10fc23e268f4f8df1a4d78c41cbfa3ff2ab7ea6aafb6d7d108b478bd1f |
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font_01_sfnt_off0000f3ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3ED | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010bff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BFF | 17660 bytes |
SHA-256: db51ad0ddd10e464ae772c08b09ac1769322b2ce9c5c07a6be5d5877d6c44276 |
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