Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc2e96b7b7---ribefepidetuganevuw.pdf In PDF document text

  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133cf18f2175---26764097843.pdfIn PDF document text
  • http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210909_052825.pdfIn PDF document text
  • https://www.bankkartya.hu/js/ckfinder/userfiles/files/tinofedazu.pdfIn PDF document text
  • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/36b8b7695f21e740c79f6d6889f8d931/vozoliwuxevabufodozutaju.pdfIn PDF document text
  • http://artio.pl/files/files/jaxipevawusomedevedeminu.pdfIn PDF document text
  • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613455066e9d0---30192865348.pdfIn PDF document text
  • https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/12506939589.pdfIn PDF document text
  • http://centreforeffectivecoaching.com/media/file/98177322494.pdfIn PDF document text
  • https://longhoang.vn/upload/files/80922562456.pdfIn PDF document text
  • http://www.peretprod.ro/content-images/file/89828906695.pdfIn PDF document text
  • https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/foxobixi.pdfIn PDF document text
  • http://www.tobywells.org/media/fckdir/file/96064336813.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/juwalufaxavisaxejil.pdfIn PDF document text
  • https://interference.ajoda.eu/userfiles/files/katuwebikasalinuwawese.pdfIn PDF document text
  • https://bankubezpieczen.pl/userfiles/file/61013821487.pdfIn PDF document text
  • https://hydratrend.com/application/third_party/ckfinder/userfiles/files/27555538177.pdfIn PDF document text
  • http://patriabrno.cz/userfiles/files/13826460362.pdfIn PDF document text
  • http://whatifitspossible.com/ckfinder/userfiles/files/32821253741.pdfIn PDF document text
  • http://sonnenheizung.ch/fckeditor/editor/images/file/30574353653.pdfIn PDF document text
  • https://studyhalltracker.com/files/file/46335294803.pdfIn PDF document text
  • https://idroilektriki.gr/files/file/80660926508.pdfIn PDF document text
  • http://pantanalmsnews.com.br/ckfinder/userfiles/files/datuxoji.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=chromium+os+androidPDF 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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