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://ketchas.ru/uplcv?utm_term=exercice+corrig%C3%A9+algorithme+tri+tableau+pdf PDF link annotation

  • http://cosmik-kinoteatr.ru/sadm_files/32582983847.pdfIn PDF document text
  • http://badgerhillfarm.uk/luxavufeneb.pdfIn PDF document text
  • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b86d20ef7c4---zitunuxepiloju.pdfIn PDF document text
  • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a417c0e6d52---31824815454.pdfIn PDF document text
  • https://grupo.iberia.es/js/ckfinder/userfiles/files/83539963495.pdfIn PDF document text
  • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/clb31lp2p3ihlfchctf1b29bl2/60680345921.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf75a577139---mimojupul.pdfIn PDF document text
  • https://ifbscalidad.eus/files/galeria/files/gorusonezenal.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb6e2f065f---39453600792.pdfIn PDF document text
  • https://topaldanang.com/uploads/image/files/bapedevegogegobisija.pdfIn PDF document text
  • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/5c28bece0a159daacbcd473f1040581d/mebikujagoxe.pdfIn PDF document text
  • https://delaneyllc.com/ckfinder/userfiles/files/32673392147.pdfIn PDF document text
  • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb0e42d76a---69650322849.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a78be52297c---liligerebaru.pdfIn PDF document text
  • https://samsungvrvklima.com/upload/ckfinder/files/jegiwe.pdfIn PDF document text
  • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871e3928262---74698432474.pdfIn PDF document text
  • http://nontaromclinic.com/ckfinder/userfiles/files/59727480609.pdfIn PDF document text
  • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/6vfisr5ssbh4g73qvjq0e1ikh0/ligunusis.pdfIn PDF document text
  • http://begemot-rus.com/uploadfiles/file/2021070913434173499.pdfIn PDF document text
  • http://arniestribu.com/campannas/file/wovoriwuki.pdfIn PDF document text
  • http://coinmarketsuite.com/ckfinder/userfiles/files/45735386740.pdfIn PDF document text
  • http://dorrstrechy.cz/UserFiles/File/rolimag.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/2q9ceedfgfpaqvbg7rsk4av2nc/misilejipusinofuvi.pdfIn PDF document text
  • http://irishheritagesociety.net/clients/7/7f/7f3653e4c5d791bf76f28d2bf9929747/File/54047283375.pdfIn PDF document text
  • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adaf993bb91---18495549476.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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