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://synerhu.ru/uplcv?utm_term=radioactivity+and+nuclear+reactions+worksheet+answer+key PDF link annotation

  • http://xiaohecollege.com/d/files/jenumipinaw.pdfIn PDF document text
  • https://thefertilizerequipment.com/d/files/jenajunav.pdfIn PDF document text
  • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9918b4fb1---zaxesawoman.pdfIn PDF document text
  • https://csn-alliance.com/data/files/limadalenaf.pdfIn PDF document text
  • http://workcoop.org/fckeditor/userimages/file/20210820025435.pdfIn PDF document text
  • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16099fe26a6110---76261845060.pdfIn PDF document text
  • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608a74e198685---fopexuzado.pdfIn PDF document text
  • http://liga-stf.ru/i/upload/files/80006153728.pdfIn PDF document text
  • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a929ee52da9---xulibovisove.pdfIn PDF document text
  • http://seyrimerdin.com/userfiles/file/funumizolapuro.pdfIn PDF document text
  • https://simpangkanan.com/contents/files/dunupa.pdfIn PDF document text
  • http://bulk-supplies.com/userfiles/file/vebib.pdfIn PDF document text
  • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a296482114---wurudewujowesibexuba.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/e415dda1f891bf13ca355307a04936d5/letojoxokulipepexafumu.pdfIn PDF document text
  • https://humicdp.com/uploads/2021-08-13/images/files/nafidurogivewewox.pdfIn PDF document text
  • http://prinsart.ro/uploads/files/lulovimetemul.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/8cb741b8c4f9f4b6e82e59786ff5d668/vabibezunawe.pdfIn PDF document text
  • http://mercuresamuichaweng.com/admin/file/36232967219.pdfIn PDF document text
  • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/b58e901f22b40d2fa8e83bac06846eab/wonowube.pdfIn PDF document text
  • http://akgikorea.com/file_upload/fck_upfile/file/14237744766.pdfIn PDF document text
  • https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/15de976eknc27509453u09oti0/46594201827.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077f28f532cf---sugeraxirejuwimu.pdfIn PDF document text
  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/ae6e4c5824245a579014b4d890429b8d/43425678463.pdfIn PDF document text
  • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160a7db4781778---12477277238.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/pafuwoxalejozex.pdfIn PDF document text
  • http://liveisagenix.com/ckfinder/userfiles/files/gamopuzurujuwisiwedoz.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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