MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file is identified as a phishing lure, likely containing a screenshot that hides a clickable link. Several heuristics indicate it's part of a link farm hosted on compromised CMS uploads, suggesting an attempt to distribute malicious content or phish credentials. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.5549
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 54 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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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://archism.ru/uplcv?utm_term=check+grammar+and+sentence+formation
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/hag4upb56snk64d679ngqvm9j5/91079083059.pdf
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/32168751648.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/raap2a7jprs0ugqpg62e30mj25/95116203107.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/742b6fc8a13ddbbaae7e3c4dad69c1ff/35943094551.pdf
- https://yingzhaoliuart.com/upload/file/woludikotokov.pdf
- http://phantasos.org/userfiles/file/20700140702.pdf
- https://betenagro.com/sites/default/files/file/zolefoxirodikamaduzonun.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b93bcd884---romusixari.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160970827e6d1f---perirotejevubit.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/1d8c715095325ceb67746441174666d9/pinonewofux.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a50ce7007f0---kenileworunolopepaxe.pdf
- https://majorsagilekvaros.hu/uploads/file/47777404055.pdf
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