MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host more PDFs. This pattern suggests the document functions as a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://chcial.ru/uplcv?utm_term=grid+tabs+chrome+android PDF link annotation
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/161379dadc00c6---polifutefujomamurimemo.pdfIn PDF document text
- http://goodtraefarm.com/ckupload/files/49180566475.pdfIn PDF document text
- http://dps-bayside.com/uploadfile/editor/file/20210922211356134.pdfIn PDF document text
- http://nemalipics.com/70150100313.pdfIn PDF document text
- http://alacarte-husum.de/userfiles/file/43413502529.pdfIn PDF document text
- http://cathyknightwaite.com/ckfinder/userfiles/files/28400375476.pdfIn PDF document text
- http://columb-sklep.pl/userfiles/file/45553711395.pdfIn PDF document text
- http://we2meeting.com/ckfinder/userfiles/publics/files/37194522233.pdfIn PDF document text
- http://www.ferm-matic.fr/upload/file/napugexave.pdfIn PDF document text
- https://dwitunggaljaya.com/sitefiles/file/70781692120.pdfIn PDF document text
- https://autoskola-scp.com/files/35474232675.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1614b1162dfc27---riwemabam.pdfIn PDF document text
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/2ab4cf3a100243bc2f6ab3e8ed002d71/17739601654.pdfIn PDF document text
- http://jlm-kg.com/uploads/file/dexedubanosevibebonisa.pdfIn PDF document text
- http://etyekilovarda.hu/userfiles/file/27326773143.pdfIn PDF document text
- http://noithattamphuong.com/upload/files/lasedunonen.pdfIn PDF document text
- http://antonellascarpittadesigner.it/userfiles/files/rakuveduxigagamaz.pdfIn PDF document text
- http://goldia.cz/data/file/6495708008.pdfIn PDF document text
- https://pacantioquia.org/aym_image/files/xawuxeg.pdfIn PDF document text
- http://around-sicily.net/userfiles/file/51781728898.pdfIn PDF document text
- http://phongkhamthienhoa.org/images/files/rudiwibepuxapaviru.pdfIn PDF document text
- http://studio-castiglioni.com/userfiles/files/wodexerurifopigowif.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9b77ac19b---42755432077.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/34466535527.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/zalepekugopitutomokegubas.pdfIn PDF document text
- https://apexsafetyproducts.com/ckfinder/userfiles/files/63502957416.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_off0000b4e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E3 | 16828 bytes |
SHA-256: cbc06ffcd15e2085bba7e53626029c6d0444b651f23a5794b9f79b8fe2c00f57 |
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font_01_sfnt_off0000df87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF87 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f79e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF79E | 10768 bytes |
SHA-256: 352ede2cc9c9e866cca086083ee64ceaf748d6b59bfe3e5e5e3ba10f7eed84ff |
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