MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution campaign. The presence of embedded links and the nature of the heuristics indicate a likely attempt to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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://queure.ru/uplcv?utm_term=most+beautiful+actress+in+the+world PDF link annotation
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/tqjict1745hmv63aur3ebqb9me/75966101404.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160711ed55bcbc---14112148807.pdfIn PDF document text
- http://debsluxe.com/clients/1/17/174397649ed9f07baa8f9d9f48c72a4d/File/91740682487.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/8b5f9547379b6a0a2f8d05eeda51dd6f/97424441621.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/9d5fhcp5nidnhso08qn1q4ifqg/fopijufobowudil.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077629d5291c---81912840914.pdfIn PDF document text
- http://daindnc.com/fckeditor/userfiles/file/22219347630.pdfIn PDF document text
- http://gallery4walls.com/upload/editer/file/gifavadezurazabimasujom.pdfIn PDF document text
- https://armagedonspedycja.pl/files/file/21626859631.pdfIn PDF document text
- http://bogelaipigeon.com/upload/file/moxopitol.pdfIn PDF document text
- https://peilimineko.com/userfiles/file/41739047577.pdfIn PDF document text
- https://strategieb2b.com/userfiles/file/letokin.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160889135b9004---jagasag.pdfIn PDF document text
- http://libertyquad72.fr/userfiles/file/92836764572.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/o1jpnm50cp1ol49mm9bnistkag/95092924430.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160798725240c9---vuzunowosinimadebo.pdfIn PDF document text
- https://cleartunemonitors.com/ckfinder/userfiles/files/51845801674.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/160a096c4d0500---ledimowozapu.pdfIn PDF document text
- http://debandhelder.nl/ckfinder/userfiles/files/54624105369.pdfIn PDF document text
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/l6bc3e2v8b5jc3sct61id0gn0j/sesokozukorezezemu.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608183d4bbb24---80384618292.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8f536e491---wosiririp.pdfIn PDF document text
- http://ed-web.cz/userfilesfile/8309049886.pdfIn PDF document text
- http://blankheich.de/images/uploads/file/xabegenojozifi.pdfIn PDF document text
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/49a83825f4054a2edbc9552d4a039d20/pepoduxiludadiki.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_off00010fd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD9 | 10892 bytes |
SHA-256: f2669e12abe418b7a6e887962e18c19b7815d44c3ed69a4c19e49407ffbd673b |
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font_01_sfnt_off0001290e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290E | 17820 bytes |
SHA-256: 608b78666e579f7da1a0d960e491c0a0280f439b9cb1fdd9dcfb812e3b51518b |
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font_02_sfnt_off00015718.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15718 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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