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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=fundamentals+of+statistical+and+thermal+physics+reif+pdf+free+download PDF link annotation

  • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/9b0e6109a9020713338eb86413ff138e/54372374402.pdfIn PDF document text
  • http://alibabashipping.com/userfiles/file/muxasotuwivifeguwakazax.pdfIn PDF document text
  • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/45d84a9d55a0fd3c90b8d8a96ec75173/gikubivabeseniv.pdfIn PDF document text
  • http://alliusie.com/userfiles/file/19545732934.pdfIn PDF document text
  • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ab212c4b47f---donulefojojesum.pdfIn PDF document text
  • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078685247fdb---musanonajajaku.pdfIn PDF document text
  • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160850312638c1---ripivarur.pdfIn PDF document text
  • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16075a6527d435---81124107741.pdfIn PDF document text
  • https://butchercurnow.com/img/shop//contents/didofedisiladaresipaw.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1a8aaf596---9193739267.pdfIn PDF document text
  • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/74745b078752275c4824ea7a5fafe090/topizopebokunu.pdfIn PDF document text
  • http://asiavent.com/UserFiles/file/%5C/wipugifolibupalorel.pdfIn PDF document text
  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/akanooglf163d8clbfqginil5a/3481096464.pdfIn PDF document text
  • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f490210aff---60733553550.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/b6f04a82ad28b1d7f24c38e05f5dc4cd/1278231971.pdfIn PDF document text
  • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160799f5f42007---95407172695.pdfIn PDF document text
  • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/446fd6c2fdcfa11c16dcb6e25b03ff07/petesomefusibor.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1608e19a6ac981---84811560974.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160985f7aee633---21664628330.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a38cc3c0049---gejalowexav.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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