MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs that form a link farm, directing users to potentially malicious or phishing sites. Heuristics indicate the PDF is designed as a link farm on disposable hosting and points to compromised CMS uploads. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://coretry.ru/uplcv?utm_term=who+is+donald+ducks+uncle PDF link annotation
- http://styrexon.cz/userfiles/file/47879729413.pdfIn PDF document text
- http://ylplj.com/ckfinder/userfiles/files/fedosapaji.pdfIn PDF document text
- http://tsmsaldature.it/userfiles/files/82531557739.pdfIn PDF document text
- http://abwingsmd.com/uploads/files/wobire.pdfIn PDF document text
- http://www.bash.cl/media/file/64983340183.pdfIn PDF document text
- http://geombiagioschettino.eu/userfiles/files/xuzezesan.pdfIn PDF document text
- http://elitaliaweb.it/upload/file/75213826061.pdfIn PDF document text
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/17287458846.pdfIn PDF document text
- http://tecs4.com/intranet/ckfinder/userfiles/files/bidizogetemonawetopasev.pdfIn PDF document text
- https://tl-systems.hu/files/files/jilemum.pdfIn PDF document text
- http://twtime.com/uploads/files/202109091351047260.pdfIn PDF document text
- http://flairpens.ru/uploads/file/70417626167.pdfIn PDF document text
- http://jingluo.net/uploadfiles/files/xaluxa.pdfIn PDF document text
- http://giasudaihocsupham.com/Images_upload/files/paduxefemugejor.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/49045005420.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319ae358107---96582660901.pdfIn PDF document text
- http://elencostruzioni.it/userfiles/files/zovalaf.pdfIn PDF document text
- https://nacionalequipamentos.com/ckeditor/uploads/files/rewexavuwebivonafu.pdfIn PDF document text
- https://gruntbudowa.pl/files/file/67669461792.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/ui15008keiu61vagh3p0016ldj/sezigemuvumowudanen.pdfIn PDF document text
- http://patrick-vallot.com/upload/files/perewazefaberimakafabebij.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/18081364606.pdfIn PDF document text
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6a8a877fc---32333298164.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_off00010142.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10142 | 18480 bytes |
SHA-256: 663dfdeb9e8f1a6afed65bc51602d77041c8c1348bc83b72dd8d7d244f5fd6f4 |
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font_01_sfnt_off000131e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000149fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149FB | 10452 bytes |
SHA-256: 4d10181e6d82c616c35ebf05a57ed6f192f23cd961c703fce372462cdefd4a53 |
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