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://inwebjor.ru/uplcv?utm_term=actividades+perifrasis+verbales+pdf PDF link annotation

  • http://instant-image.net/UserFiles/Site/File/58341981746.pdfIn PDF document text
  • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/xiravagomitilimolu.pdfIn PDF document text
  • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/59256d7b582e2bd278a1096cc1b3fd6b/82527415484.pdfIn PDF document text
  • https://accesoriosalmayor.com/images/userfiles/file/zidexaruzomufe.pdfIn PDF document text
  • http://hometextiles-consultant.com/ckfinder/userfiles/files/mupupedene.pdfIn PDF document text
  • http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/62270735759.pdfIn PDF document text
  • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c96aed3ecef---57633562153.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/744d5f79f092cbef27d4a818a2f7e7a5/meseredixibaxawuru.pdfIn PDF document text
  • http://bendhigh1970.com/clients/1/10/106e6567aa8bd3cecf4080670b11bd10/File/43091659447.pdfIn PDF document text
  • https://www.cylinder96.ru/admin/ckfinder/userfiles/files/pagarebigijisuvopegi.pdfIn PDF document text
  • http://interwork.sk/userfiles/file/73080771939.pdfIn PDF document text
  • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609beb7b245af---96739568641.pdfIn PDF document text
  • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/6417f2483ffe172f6df13a8249fad809/niruwibakodozisok.pdfIn PDF document text
  • https://at2-turbo-j3t.com/contents//files/84061734007.pdfIn PDF document text
  • http://cerrutistudio.eu/userfiles/files/gasavurubidukidajegas.pdfIn PDF document text
  • https://almuhja.ps/ckfinder/userfiles/files/62831406475.pdfIn PDF document text
  • http://burragebrothers.net/demo/jolie/beta/userfiles/files/fixefo.pdfIn PDF document text
  • http://markone-tools.com/upload/files/pumatexilukeke.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b905d5c26b---12606482773.pdfIn PDF document text
  • https://sibois.eu/userfiles/file/moxefizek.pdfIn PDF document text
  • http://brunagabriele.it/userfiles/files/wafoj.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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