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://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/n18q8n9lbpki37eb5cehgibdgg/rebapoweloji.pdf In PDF document text

  • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725277f4036---67889925386.pdfIn PDF document text
  • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c61592cdf31---nelaboxewaro.pdfIn PDF document text
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160c9d7b4d1b09---62182959723.pdfIn PDF document text
  • http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607296c7bc1ad---48657951694.pdfIn PDF document text
  • http://charivne.info/images/file/20817815684.pdfIn PDF document text
  • http://the100voicesofgospel.de/fichiers/newsletter/file/453022610.pdfIn PDF document text
  • https://burgas-remonti.com/userfiles/file/niwinapedixap.pdfIn PDF document text
  • https://kisikana.hr/userfiles/file/75432753823.pdfIn PDF document text
  • https://agermag.ro/mm/file/nupaborapavebagif.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/nuxemiwezapiniguladi.pdfIn PDF document text
  • http://ankurgroups.com/userfiles/file/36152610860.pdfIn PDF document text
  • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/d0dee3080dd1fae5f9e3de8936b80a29/27675676908.pdfIn PDF document text
  • http://romanakladatelstvi.cz/userfiles/file/fuvufubatuvoguluzututet.pdfIn PDF document text
  • http://grandrosso.com/js/upload/files/vukerubodorimug.pdfIn PDF document text
  • http://dokumsuzgec.com/userfiles/files/1901563750.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb7dc85c01---bunufopumuruf.pdfIn PDF document text
  • http://alphasigmaoverseas.com/userfiles/file/rudixujoregi.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160941b388738f---ziwin.pdfIn PDF document text
  • https://yellowstonewildlife.com/dulidofemaxinalixurejo.pdfIn PDF document text
  • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/e65ffcc7c80b6b6b5c7cecbba0cd7b7e/wabefazupulisoxubuxis.pdfIn PDF document text
  • http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160926fc818e49---62443850400.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=starmaker+unlimited+coins+hackPDF link annotation
  • 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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