MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for link farms used to distribute malware or conduct phishing. Heuristics indicate it's a link farm on disposable hosting, and ClamAV detected it as a phishing trojan. The ML classifier also flagged it with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
Heuristics 5
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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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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://crewmak.ru/uplcv?utm_term=fundamental+physics+o+level+pdf PDF link annotation
- http://oookub.ru/upload/fckeditor/file/73409473545.pdfIn PDF document text
- http://lamorenj.com/userfiles/file/13430616357.pdfIn PDF document text
- https://mytopics.it/uploads/file/31697679798.pdfIn PDF document text
- http://vidol.eu/userfiles/file/jobitoliletowefi.pdfIn PDF document text
- http://ongxoanhdpe.vn/upload/files/34681328119.pdfIn PDF document text
- http://cattaneoarchitetti.it/userfiles/files/81791344404.pdfIn PDF document text
- http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/97245888140.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145755215034---pofigajebuz.pdfIn PDF document text
- https://kstraders.com/userfiles/file/belavasobukesafusa.pdfIn PDF document text
- https://nstoplana.rs/ckfinder/userfiles/files/jubolunilutefunib.pdfIn PDF document text
- http://seksdagen.nl/userfiles/file/mebeduxunisi.pdfIn PDF document text
- https://playerpress.com/ckfinder/userfiles/files/bejoku.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/22348672488.pdfIn PDF document text
- http://terezmisszio.eu/files/file/54232564884.pdfIn PDF document text
- https://www.kindspring.org/inc/ckfinder/userfiles/files/gojaboxefum.pdfIn PDF document text
- http://topspeed4wd.com/ckfinder/userfiles/files/51667070014.pdfIn PDF document text
- http://a-mega.ua/images/uploads/file/10217781202.pdfIn PDF document text
- http://msslink.ru/userfiles/files/nixorarirejokaji.pdfIn PDF document text
- http://kht.civilkozpont.hu/uploads/file/19034247882.pdfIn PDF document text
- http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/13889462470.pdfIn PDF document text
- https://brukspec.pl/upload/file/4521063351.pdfIn PDF document text
- http://murito.fr/ckfinder/userfiles/files/tupexazozujix.pdfIn PDF document text
- http://chandigarhdatarecovery.com/files/file/65227867143.pdfIn PDF document text
- http://insfilings.com/skyzone_classic/upload/files/79849493687.pdfIn PDF document text
- https://yourdentist.ro/app/webroot/files/userfiles/files/75008050368.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/70990111880.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_off0000c5d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5D7 | 11044 bytes |
SHA-256: a5e76bba136467656cfea0c737efb65c79b06cbe87164e1d89ddf6620ad13f68 |
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font_01_sfnt_off0000df5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF5E | 17444 bytes |
SHA-256: 3e18d9e85ae77700a38ffd02f873714d85fbe0a84f3c7cd49747cb93625fd922 |
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font_02_sfnt_off00010c7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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