Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://drafthe.ru/uplcv?utm_term=lumber+tycoon+2+house PDF link annotation

  • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16079d1c2a8da9---36332046512.pdfIn PDF document text
  • http://fritz-fahrlaender.ch/download/47921932428.pdfIn PDF document text
  • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/3013ac67623c05650a9cb5abbe48eb44/84436367260.pdfIn PDF document text
  • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16075eb003c6b8---97475489812.pdfIn PDF document text
  • https://ive-cal.it/file/66905667676.pdfIn PDF document text
  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a019b3d9335---kofarudidafa.pdfIn PDF document text
  • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49bd28af3f---58434051784.pdfIn PDF document text
  • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/22ec2f671c485b0adb835e6b0eb209ee/gekofositepisetozetupoku.pdfIn PDF document text
  • http://netpost.vn/upload/userfiles/files/2701579398.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/sgcmln0rm2rh0f902okjqcus5g/fegolawebo.pdfIn PDF document text
  • http://kamkmori.cz/ckfinder/userfiles/files/jofixaripunojuwoli.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dad8c2406f---vefetixinewovusuvazi.pdfIn PDF document text
  • http://dui-antidote.com/images/userfiles/file/likikaduminuraxov.pdfIn PDF document text
  • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094bb0a03b57---13498066253.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608332f36f864---57721725856.pdfIn PDF document text
  • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/sjgcn4emodhkevmgi36dsohdj2/75869671249.pdfIn PDF document text
  • https://searchlink.org/userfiles//file/37214899123.pdfIn PDF document text
  • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/ht53ffo2d63n71ntavsco0im8t/pazavogomatosoxosi.pdfIn PDF document text
  • https://i-chat.tw/js/ckfinder/userfiles/files/wugoxa.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/08c8ca1607380f939a82702cb4a4614a/8645480837.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

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