Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF 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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The 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.
• Embedded URL info EMBEDDED_URL
  One 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://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/99231165a6619371b223896ef58eba75/79546961526.pdf In PDF document text

  • http://fenotropil.ru/userfiles/file/xawoneganesitanosufuteza.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf828c3ecd---1402904227.pdfIn PDF document text
  • https://thegioidongphuc.net/ckfinder/userfiles/files/50849969094.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b3bce47db1c---92585275940.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/f46d328a701da5a6da82737e092a11a0/judixu.pdfIn PDF document text
  • http://standdominica.org/files/files/22166605974.pdfIn PDF document text
  • http://kappp.ru/js/ckfinder/userfiles/files/89451440126.pdfIn PDF document text
  • https://irepairplus.nl/app/webroot/files/userfiles/files/lowuwogulep.pdfIn PDF document text
  • http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210715_6CDC12089F8C4255.pdfIn PDF document text
  • http://refpecsbelvaros.hu/kepek/files/lobunepenewutito.pdfIn PDF document text
  • http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/xajedudizogebozebeved.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160813dee8d565---kopawa.pdfIn PDF document text
  • http://cl-pub.com/files/files/xeloletasib.pdfIn PDF document text
  • http://heninrealty.com/userfiles/files/1026702909.pdfIn PDF document text
  • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/a32e6fc779ce84d2fcd41901525e3dd8/43963172282.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/16074d4c2c01f2---vutabobuluvugapanakediso.pdfIn PDF document text
  • https://sankaibearing.com/userfiles/files/tofaxegidixedununorupid.pdfIn PDF document text
  • http://fpempresa.cen.es/userfiles/files/wopixijisukenatex.pdfIn PDF document text
  • http://tacchigroup.com/public/thread/risorse/file/54565671834.pdfIn PDF document text
  • https://actor-conseil.com/files/file/71663393481.pdfIn PDF document text
  • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e2a33900fa0---81982792739.pdfIn PDF document text
  • http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/21143516941.pdfIn PDF document text
  • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c9a3ba340f---1867893725.pdfIn PDF document text
  • http://proximeo.com/ckfinder/userfiles/files/duwumegomifajefomupel.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=difference+between+bjt+and+fet+pdfPDF link annotation
  • 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

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