MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary attack pattern involves luring users through a malicious attachment to a site that then redirects them to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://infrive.ru/uplcv?utm_term=federal+government+meaning+in+english
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/1olki1lvhe65b36d9k1lslpqt1/48391558326.pdf
- http://originalavto.ru/userfiles/file/rofikofemidamerupemejo.pdf
- https://scriptdd.com/_file/file/nexexodusa.pdf
- https://postelezmasivu-praha.cz/ckfinder/userfiles/files/jelagusasolo.pdf
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/86005145232.pdf
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/a4b1b98a53f6ed2f49aa09cdbf1705fa/639912149.pdf
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/0acdd688fecc7b998ce8d4af1cc27823/26907271145.pdf
- http://mebelhotel.ru/userfiles/files/purudojukawogazodu.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/10a3e2351220068d09d58e14f66ae717/resupavariremimarigij.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/b862ec4d6ffbf6a9d61510eb5301ebd6/98100486948.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2f1d62975---50017638125.pdf
- http://www.anclupnapoli.it/userfiles/file/susuzo.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608b09b207c52---18296410243.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/gldnkvutsa7ffl1tcjq373vtb9/tulal.pdf
- https://giverny-bkk.com/upload/files/57848550741.pdf
- http://cobansut.com/userfiles/file/xawov.pdf
- http://otohondamientay.com/upload/files/71451239720.pdf
- http://teplospectr.ru/images/files/49151354112.pdf
- http://triatlonbizuterie.cz/sites/default/files/file/pizevifupisugovubadipuza.pdf
- https://cissud.com/uploads/ck_editor/files/gatibijuzusepoxide.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c02d2a82d39---22574941543.pdf
- http://all-premium.com/user_file/files/fisasetofiduluz.pdf
- https://cvconstructionsgoa.com/pharma/admin/userfiles/file/28034499.pdf
- http://ambvetbrashersclavoghisu.eu/userfiles/files/dexarelamisigexedileri.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c042.bin2d463231a7555bc7be3c54d75d9c71ffde7c1eafafb6097202025a7f13915775 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC042 | 10736 bytes |
font_01_sfnt_off0000d884.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD884 | 16792 bytes |
font_02_sfnt_off0000f091.bin9c928bf144e3eec6b0e52ae2bba533670589b2228405e28e178bb89e049a64b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF091 | 1684 bytes |
font_03_sfnt_off0000f889.bin2cb7fd685145583f38ca6309559137d1dfddcb89e5db7ef0685e604dccb27f5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF889 | 22592 bytes |
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