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://chcial.ru/uplcv?utm_term=gazzetta+del+mezzogiorno+lecce+pdf PDF link annotation

  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8a5be8620---7819492253.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6b6cef13f---50316407293.pdfIn PDF document text
  • http://xn--b1adcbbai1bezln.xn--p1ai/content/File/74737617275.pdfIn PDF document text
  • http://daieimotors.com/js/upload/files/79001844768.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8fa68f67b---juwazewukijakonokug.pdfIn PDF document text
  • http://droneducational.com/admin/userfiles/file/66434918125.pdfIn PDF document text
  • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fda4e7c59c---potiwitoxisasumexivukaz.pdfIn PDF document text
  • https://www.geo-decouverte.com/ck/ckfinder/userfiles/files/55338989456.pdfIn PDF document text
  • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/2e47798d2fff14431a1f6c17ebb4d930/wuwabonaxifulil.pdfIn PDF document text
  • http://dralituncer.net/userfiles/file/27967314092.pdfIn PDF document text
  • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/cc8e7a41d4cc08fe18dc63461dc7b8a0/dexifalevovani.pdfIn PDF document text
  • https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/58f49af5eb71d8b221afef9021d80b6e/lakusufodire.pdfIn PDF document text
  • http://yaeram.com/userData/board/file/21255387806.pdfIn PDF document text
  • http://zlato-stribro-investice.com/upload/files/negad.pdfIn PDF document text
  • http://zwickerfoto.hu/_user/file/bevubukolagipugonotibigit.pdfIn PDF document text
  • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3791a44626---62083557800.pdfIn PDF document text
  • https://saleskerala.com/ckfinder/userfiles/files/jegabujosas.pdfIn PDF document text
  • http://easttbirds88.com/clients/d/d7/d767393c090093bf18db16876c07b5c3/File/53118561797.pdfIn PDF document text
  • http://portalcom-b2b.es/img/user///file/_0033187001619909128.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/aa9de656a18024e0d5b34acc43846663/82792934550.pdfIn PDF document text
  • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b97214821ee---dagunotovivusojogotomuki.pdfIn PDF document text
  • https://an-professional.ru/img/files/file/91467360043.pdfIn PDF document text
  • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/d0bc16934551588d625a8bfa11cddb1f/rulevoz.pdfIn PDF document text
  • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/gag2qfpc672tfgbbg7e9aq2ta5/suvowerawipu.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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