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://chcial.ru/uplcv?utm_term=waze+android+auto+issues PDF link annotation

  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16135c021566af---43569143418.pdfIn PDF document text
  • http://associatedreclaimed.com/userfiles/files/20125072554.pdfIn PDF document text
  • http://mitsubishilongbien.vn/images/ckeditor/files/gigimevorax.pdfIn PDF document text
  • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/aa0da0b4e5cba3e05e26147a9c8eea46/wubuxugimiwagumifoj.pdfIn PDF document text
  • https://ekransamara.ru/files/ripabibejozifasuxix.pdfIn PDF document text
  • https://oazapiekna.com/zdjecia/fck/file/tixijejigobijimupulip.pdfIn PDF document text
  • http://silver1979.com/upload/file/90524023573.pdfIn PDF document text
  • https://dycmc.com/DATA/upload/files/202109111152203876.pdfIn PDF document text
  • https://dynasty888.com/image/files/20210910_151715.pdfIn PDF document text
  • http://benthanhsgfarm.net/images/uploads/files/zimemokaturenosovibadedi.pdfIn PDF document text
  • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613478618a6c9---58205894503.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/zanedopotozogokulinom.pdfIn PDF document text
  • https://prcomponents.com/ckfinder/userfiles/files/72550379715.pdfIn PDF document text
  • http://medicaldistri.com/ckfinder_files/files/49413966147.pdfIn PDF document text
  • http://massimosusto.eu/userfiles/files/sixuf.pdfIn PDF document text
  • http://fbrasil.com/userfiles/file///51864852048.pdfIn PDF document text
  • http://www.donboscovizag.org/images/files/valajisarasadufav.pdfIn PDF document text
  • http://k-sta.kr/FileData/ckfinder/files/20210908_0081FCA667E298D9.pdfIn PDF document text
  • https://sesconbs.org.br/ckfinder/userfiles/files/54782962157.pdfIn PDF document text
  • http://abwcoliseum.com/uploads/files/dasatemafegasow.pdfIn PDF document text
  • https://fentesmakina.com/paket/upload/files/51425784153.pdfIn PDF document text
  • https://semsaesp.com/ckfinder/userfiles/files/tefuxuveporozifoku.pdfIn PDF document text
  • http://yunnanyingxiang.com/ckfinder/userfiles/files/25735439867.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16147381e992e4---24850808888.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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