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=embedded+c+interview+questions+and+answers+for+freshers+pdf PDF link annotation

  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/ai8jq3k3f0et2cehmgs237ou97/36264506818.pdfIn PDF document text
  • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cc1a371f47a---vuvuvupulumiwubigonirala.pdfIn PDF document text
  • https://gionggiacam.com/ckfinder/userfiles/files/bezirekoga.pdfIn PDF document text
  • http://synerfreight.com/syner_upload/images/files/vusupixibavaradogovegide.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/93567719278.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/pilavapus.pdfIn PDF document text
  • https://ourcampuswindow.com/ckfinder/userfiles/files/56069967688.pdfIn PDF document text
  • http://monkeytailranchdonation.org/clients/e/e8/e82116dd0b5861b0917add2a69208af2/File/62258925955.pdfIn PDF document text
  • https://encoregallery.us/wp-content/plugins/super-forms/uploads/php/files/3ddc6c39a68f92b2fef76ffbc1e9e8a0/30052528271.pdfIn PDF document text
  • https://castilloexterior.net/ckfinder/userfiles/files/89145647933.pdfIn PDF document text
  • http://borisovhlebprom.by/var/upload/file/lobiwuduribugolonoluji.pdfIn PDF document text
  • http://thelewisfamilyreunion.com/clients/c/ce/ce72a6ed4f7059d305e3bbfb121cee90/File/80732441524.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f430c6e3c7---74105127578.pdfIn PDF document text
  • http://modra-skola.cz/userfiles/file/tofegaradubewoba.pdfIn PDF document text
  • https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/9iok5o2r1ioki67v5b0rd4ah5j/11094543092.pdfIn PDF document text
  • http://quaint-house.com/lazemumewuvagu.pdfIn PDF document text
  • http://cuacuonanbinh.com/userfiles/file/winolaga.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607df4f302809---82777964705.pdfIn PDF document text
  • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/480210e8fa96001508d7c8433725cc57/pexab.pdfIn PDF document text
  • http://sous-mama.org/userfiles/file/kuziwaxometixoweduzol.pdfIn PDF document text
  • http://mq-water.net/upload/rudalebipofo.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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