MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains a large number of embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm to distribute further malicious content. The presence of these links strongly implies an attempt to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://mebizstekla.ru/userfiles/file/96219883472.pdf In PDF document text
- http://studiochiodo.eu/userfiles/files/23993580871.pdfIn PDF document text
- http://joyear.com/ckfinder/userfiles/files/refejom.pdfIn PDF document text
- https://thepainter.asia/upload/files/vanivewevurimi.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5b00af9d6---nojovesulanifaf.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ce876e5ece---sorejimetazimoliduri.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/4e417d5fe6a2f4be199768dc83b58bfc/pofubux.pdfIn PDF document text
- https://spacio.hk/attachment/file/72557258772.pdfIn PDF document text
- http://cathugo-catamarans.de/res/wysiwyg/file/wowufo.pdfIn PDF document text
- http://neurooperations.com/ckfinder/userfiles/files/42852402708.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/kubuto.pdfIn PDF document text
- http://tischtennis-kiel.de/images/file/28466356065.pdfIn PDF document text
- https://odlingfamily.com/userfiles/file/63175301539.pdfIn PDF document text
- http://architettoannalisatinelli.it/userfiles/files/bagubujod.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/piwugevekevelenor.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/28893529568.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161590dd516f39---degufa.pdfIn PDF document text
- https://uleshuzataruhaz.hu/files/file/9815485401.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/suzoweromap.pdfIn PDF document text
- http://sharedsynergy.com/userfiles/file/dedabavi.pdfIn PDF document text
- https://cauthinh.com/luutru/files/80087381910.pdfIn PDF document text
- https://rizecanreklam.com/images/file/risesa.pdfIn PDF document text
- http://bdsps.org/slbdavbatala/userfiles/file/76644061540.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=how+many+feet+are+there+in+fathomPDF 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_off0000afd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFD8 | 10456 bytes |
SHA-256: d04e4d1ae6bcac48c2e1f66261013af1725fb18869de4e70f87a22fb3c7eadf2 |
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font_01_sfnt_off0000c75e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC75E | 14728 bytes |
SHA-256: e477cc72d47b94b5ddb520ef7ef5a2587d4da20e4810f0cf5fc3189d12998384 |
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font_02_sfnt_off0000ec26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC26 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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