MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed for SEO manipulation to attract users searching for product keys. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing or malware payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://cructi.ru/uplcv?utm_term=windows+8+product+key+for+free PDF link annotation
- http://kfbi.ru/content/file/27829104874.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/035587751057200110912a8fcf18835d/53091629250.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/72fb352b0424fa9500f1d5cf92b21b60/betifiruwax.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/a2610f5577b6817641b808b067c92df7/77315952373.pdfIn PDF document text
- http://asesorgubernamental.com/images/file/72793185845.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/59585068402.pdfIn PDF document text
- http://vietthanhstone.com/images/news/file/29567428935.pdfIn PDF document text
- http://espacioschillout.es/images/admin/file/nupibutoxelinafizig.pdfIn PDF document text
- http://arch-teh.com/pic/userfile/9942143576.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/xiponoruda.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160afd8fdd2c0b---42487316424.pdfIn PDF document text
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076c75066e36---90986792280.pdfIn PDF document text
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd53c884e4---nemomirelakewoxavumagixu.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094d73a9cca6---79500512986.pdfIn PDF document text
- https://greenvalleykerala.com/ckfinder/userfiles/files/mapuzepumukipunarorob.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16074706bcdb0b---femimemededule.pdfIn PDF document text
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/ac647feb1d076f7609e081d0b3f6013c/devupiwisa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e888.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE888 | 5252 bytes |
SHA-256: 67bfe9988d27e677a4a7eccc336f0b2a6a8260a42b69891b538437f2379efa73 |
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font_01_sfnt_off0000fa9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA9A | 11008 bytes |
SHA-256: 3bffcae64a815a20fed3ab9d5cdcae2934408e2264cdd3db6ee8f6a6e4698e81 |
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font_02_sfnt_off00012001.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12001 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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