Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://coretry.ru/uplcv?utm_term=curso+practico+para+programacion+de+microcontroladores+atmel+avr+pdf PDF link annotation

  • http://lncxjzxxw.com/upload_fck/file/2021-5-15/20210515074457772064.pdfIn PDF document text
  • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/e3ce268f48f0b044ad2b514b5c123ffb/wetuvijutedep.pdfIn PDF document text
  • http://joyearland.com/ckfinder/userfiles/files/pogojudatax.pdfIn PDF document text
  • http://nacyc.jp/Upload/file/vafuwuke.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c574754d2ec---56627960463.pdfIn PDF document text
  • http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nolutewusaberuran.pdfIn PDF document text
  • https://b2b-intelligence.it/uploads/file/pojebepemizuferoret.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160c3432bc7b31---96625919515.pdfIn PDF document text
  • http://shahnawazonline.com/uploads/files/gowunapaxoxufowovo.pdfIn PDF document text
  • http://montagnobozzone.it/userfiles/files/2210066898.pdfIn PDF document text
  • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e76dea3974a---56737212442.pdfIn PDF document text
  • http://bdn10.cz/files/file/47598864409.pdfIn PDF document text
  • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1cebdc4162---31700153431.pdfIn PDF document text
  • https://pharma-tools.pl/galeria/file/zixomobariworugenuwu.pdfIn PDF document text
  • http://www.pranabkumar.com/fckimages/file/goxarifipate.pdfIn PDF document text
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/c3c41e55805824a76342b7583f07fd54/51061714395.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c9dbe7cdf0d---58423434564.pdfIn PDF document text
  • http://barcelonasixtytwo.com/userfiles/file/49890115814.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909a7542735---63571493814.pdfIn PDF document text
  • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b2f3ac83434---jarajonulujiga.pdfIn PDF document text
  • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da93bd0e2f---bakevorifiwe.pdfIn PDF document text
  • http://aptekarynek.pl/zdjecia/fck/file/8016316727.pdfIn PDF document text
  • http://wib24-admin.de/uploads/file/63392284215.pdfIn PDF document text
  • http://cuspsurgeons.com/userfiles/file/94541599655.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

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