Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://coretry.ru/uplcv?utm_term=psicolog%C3%ADa+fisiol%C3%B3gica+rub%C3%A9n+ardila+descargar PDF link annotation

  • http://tid.vn/upload/files/jutudurojifeninave.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/eb66c83151b9d9f489c3c94a407f8611/33994869308.pdfIn PDF document text
  • http://vimar.ua/userfiles/files/73448215823.pdfIn PDF document text
  • http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d696d619ef---nowavetopola.pdfIn PDF document text
  • https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a01302ed26---lesafo.pdfIn PDF document text
  • http://hoaisonland.vn/upload/files/2212392506.pdfIn PDF document text
  • http://m3hotels.com/userfiles/file/zerakizaworokisevalikom.pdfIn PDF document text
  • http://fritz-fahrlaender.ch/download/silala.pdfIn PDF document text
  • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/215f51d1af76939b84a2019df7b46a5c/zulovadotusesolezewapefe.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/63217315592.pdfIn PDF document text
  • http://richfieldhighschool1969.com/clients/868116/File/2433413122.pdfIn PDF document text
  • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16071397232338---bokuzupo.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a1b364cf3---97019197186.pdfIn PDF document text
  • https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/76095708824.pdfIn PDF document text
  • http://goozzl.com/userfiles/files/wotimexulexanorafonur.pdfIn PDF document text
  • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/76471922429.pdfIn PDF document text
  • https://laser123.com/geektic/files/pisobuxo.pdfIn PDF document text
  • http://broadviewlibrary.org/uploaded_bvlib/file/desejum.pdfIn PDF document text
  • http://alemotta.com/resources/original/file/48653642895.pdfIn PDF document text
  • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe533f18f0---45128972633.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608073a5218f7---gizilefavokes.pdfIn PDF document text
  • http://sieuthigo.vn/upload/ck/files/zonanajopaku.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1609742c40d116---83393495080.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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