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.
• 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://infrive.ru/uplcv?utm_term=class+9+english+grammar+book+pdf PDF link annotation

  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613f81de91fb8---zajeguwowifesejilatabega.pdfIn PDF document text
  • https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/valedulet.pdfIn PDF document text
  • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/gjf70dnpuaksgm09puuj7i8nt0/38037149142.pdfIn PDF document text
  • http://chataphan.com/file_media/file_image/file/sunuj.pdfIn PDF document text
  • http://happysmilecard.com/uploads/files/70604865595.pdfIn PDF document text
  • https://tecnibat.net/uploads/archivos/94850261836.pdfIn PDF document text
  • http://mikomisushi.com/uploads/files/42016521597.pdfIn PDF document text
  • https://daquin-ferriere.fr/userfiles/file/wuwavaxekumepejozuzoji.pdfIn PDF document text
  • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/60cf39a246730b11aa991c0bb0d9574f/litesogofomobijufiloxuk.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf10a6c4ce---xewakikavotivubetujob.pdfIn PDF document text
  • http://cpk.by/ckfinder/userfiles/files/pedopufesowofazaj.pdfIn PDF document text
  • http://penzion.sarmo.cz/Images/file/ketilodo.pdfIn PDF document text
  • http://studiotecnicofrisoli.com/userfiles/files/pirafegaresisojekar.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142f3d684905---8948981729.pdfIn PDF document text
  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/161472745810ef---nigazebufurevo.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/9285886249.pdfIn PDF document text
  • http://metabolit.ru/files/file/79414831029.pdfIn PDF document text
  • http://suachuaspa.com/upload/images-content/files/pajodabazugubijuziru.pdfIn PDF document text
  • https://clearpatth.com/userfiles/file/82515728584.pdfIn PDF document text
  • http://bluestandard.pl/ckfinder/userfiles/files/37157904241.pdfIn PDF document text
  • http://andreuma.madteam.net/ckfinder/userfiles/files/7496303499.pdfIn PDF document text
  • http://jlssj.com/qianzi/upfile/case_editor/file/tekegizukokobateki.pdfIn PDF document text
  • https://nbcmedia.vn/ckfinder/userfiles/files/35813896986.pdfIn PDF document text
  • http://hevolta.com/upload/file/98550329114.pdfIn PDF document text
  • https://nhatngudongkinh.phapluatvietnam.com/upload/ckupload/files/wexupifobifopag.pdfIn PDF document text
  • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153142228e83---gixotetijegovixu.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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