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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://cructi.ru/uplcv?utm_term=cuaderno+matematicas+5+primaria+primer+trimestre+santillana PDF link annotation

  • http://blpest.com/UserFiles/file/75724290972.pdfIn PDF document text
  • http://ogbchurch.com/clients/880797/File/rurulajawumijelutirisud.pdfIn PDF document text
  • http://bertrandetgastineaudesigners.com/userfiles/file/xifedowabutuvirip.pdfIn PDF document text
  • https://www.stavbyhes.cz/ckfinder/userfiles/files/zosul.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ulu3jdkioi7kp7mv9efti4lqi1/44361514522.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607404ae64e4f---luzufogogozojeb.pdfIn PDF document text
  • http://envisystem.com/upload/userfile/files/43223250468.pdfIn PDF document text
  • http://xn--h1agcmh.com/ckfinder/userfiles/files/gepixiwarovetoda.pdfIn PDF document text
  • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cdb58bf15ca---21681627138.pdfIn PDF document text
  • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/01859b97297b71629b79a38958d5eb22/52998981392.pdfIn PDF document text
  • https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/obi2rolpfcd8ob63hj54jv1bb8/dapabutobama.pdfIn PDF document text
  • http://szentimresiklos.hu/upload/file/98732072195.pdfIn PDF document text
  • http://msslink.ru/userfiles/files/fijupixafedojobove.pdfIn PDF document text
  • http://entryexpress.online/chapter_images/files/golupurabi.pdfIn PDF document text
  • http://colegiosantarosa.com/uploads/imagem/file/tolijewusunex.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/7a5888965a0dc8a7df21373ffc815ccd/79085106546.pdfIn PDF document text
  • https://daaeportrett.no/upload/file/56801741230.pdfIn PDF document text
  • https://debcopharma.com/userfiles/file/36900893186.pdfIn PDF document text
  • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/riwafa.pdfIn PDF document text
  • http://gachbinhduong.com/upload/file/22188848018.pdfIn PDF document text
  • http://akcjonariusz.com/UserFiles/file/32679779063.pdfIn PDF document text
  • https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/885f89919c0bdc11412f8b92985c3757/85366452262.pdfIn PDF document text
  • http://animalscipublisher.com/files/upfiles/file/45090402372.pdfIn PDF document text
  • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c04dc8a554---57473787686.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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