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 http://zhongjiukeji.com/upload_fck/file/2021-9-7/20210907221514433020.pdf In PDF document text

  • https://petandpuppies.com/userfiles/file/dajonibetigomesuzobafezur.pdfIn PDF document text
  • https://northwestconvention.cz/data/files/nudoris.pdfIn PDF document text
  • http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/rosoruguz.pdfIn PDF document text
  • http://chornakorn-packing.com/ckfinder/userfiles/files/74521687586.pdfIn PDF document text
  • http://artediapharma.com/upload/files/11994223076.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161375c09b2a2c---8612077521.pdfIn PDF document text
  • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff676c7c80---47365492209.pdfIn PDF document text
  • http://xn--365-pn7mwb654m2qn.com/ckupload/files/14204265692.pdfIn PDF document text
  • http://www.mezmat.ru/ckfinder/userfiles/files/butujizo.pdfIn PDF document text
  • http://xy-interior.com/uploads/files/202109071503446734.pdfIn PDF document text
  • https://eklyps.net/images/file/vorakegusa.pdfIn PDF document text
  • https://biogenetixpharma.com/ci/userfiles/files/33288465852.pdfIn PDF document text
  • http://avision-italia.com/userfiles/files/58426949505.pdfIn PDF document text
  • https://xrtradingfeedback.com/cmsimages/file/51187049702.pdfIn PDF document text
  • https://adikmanis.com/contents/files/buguta.pdfIn PDF document text
  • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a73a240d20---xipigunilijujalitivan.pdfIn PDF document text
  • http://sententtech.com/file_media/file_image/file/37447787115.pdfIn PDF document text
  • http://hanaelectric.com/userData/board/file/22997190147.pdfIn PDF document text
  • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/jozak.pdfIn PDF document text
  • https://excellencetogether.com/img/files/file/rumedare.pdfIn PDF document text
  • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16139009b5d2bb---52987559426.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2d2fa3863---jizej.pdfIn PDF document text
  • http://eros-arena.com/eros/userfiles/file/kizugulip.pdfIn PDF document text
  • https://lixtech.com.tw/ckfinder/ckfiles/files/nofokazetetuz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=stryer+biochemistry+9th+edition+free+downloadPDF 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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