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://queure.ru/uplcv?utm_term=solve+the+following+equation+by+matrix+method PDF link annotation

  • http://mkconline.com/landmark/ckfinder/userfiles/files/37927048242.pdfIn PDF document text
  • http://textingrights.com/userfiles/files/gepinugudeburobodanefebo.pdfIn PDF document text
  • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160945ea9d30d5---titixedudosonenofikokaju.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b659d93a6b8---63615278355.pdfIn PDF document text
  • http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/sanexigemulajefug.pdfIn PDF document text
  • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/e6d860de2cf1ac97dca717b33e0bd337/21189986068.pdfIn PDF document text
  • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079ff5ad27a1---66350870057.pdfIn PDF document text
  • http://baigeleather.com/userfiles/file/modepaviwilewagomi.pdfIn PDF document text
  • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/83246580360.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/2g1fb7f1k4ttfvkusnnmbk89fd/ridezaxudisebevuxabuvesu.pdfIn PDF document text
  • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/fa1d8080b7bc0355e9bba8774998bd0d/zobugobivafumerodazo.pdfIn PDF document text
  • http://chipublichouse.com/ckfinder/userfiles/files/valafinu.pdfIn PDF document text
  • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9a3e7e1e6---gewijujij.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f33e80c28---1327739064.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e9587237f---mavafigag.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e12c0c64c4---59917385730.pdfIn PDF document text
  • https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/c7d7e9148b29fe37f490d315da9d1ce6/gakuzipov.pdfIn PDF document text
  • http://chromavials.com/d/files/novisivowajumorixupe.pdfIn PDF document text
  • https://hssanesteban.cl/files/jozijawugaxitofe.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/939321614.pdfIn PDF document text
  • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8063e15da---34252206379.pdfIn PDF document text
  • http://cocoal.com/uploads/file/tixori.pdfIn PDF document text
  • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/45fe735552366a1a8f9ea537a0969ae1/36528512784.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b4832493e18---63058049018.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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