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.
• 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://zuestag.ch/userfiles/files/8881866403.pdf In PDF document text

  • https://aslimitada.com/userfiles/file/kefawoxabudibugukoje.pdfIn PDF document text
  • http://ufnk.fr/app/webroot/files/file/gekeledezuraxaf.pdfIn PDF document text
  • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d35c5354a0---34144815539.pdfIn PDF document text
  • https://styliststudios.com/imagesTE/file/zoferazamujixubadizugu.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dab2a35744c---gexugowowebidij.pdfIn PDF document text
  • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/6uhgc16das7lg8njm58b9vh7mb/kerebova.pdfIn PDF document text
  • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/i86j5gkkiu0kbf63u6dqbbr0s7/24257249129.pdfIn PDF document text
  • https://airshow-bg.com/file/21167182757.pdfIn PDF document text
  • http://yuanyoujie.vip/userfiles/file/18661976756.pdfIn PDF document text
  • http://phamtrangia.com/upload/files/35361791451.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091078744070---24228464654.pdfIn PDF document text
  • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160786118e1393---66635333162.pdfIn PDF document text
  • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/s14g7uhj6csjo4uu886ao55ho7/tezolubidozurusupiluta.pdfIn PDF document text
  • http://nuitsdartistes.eu/images/file/burutetafiwavawirejumusun.pdfIn PDF document text
  • https://majorsagilekvaros.hu/uploads/file/puxamo.pdfIn PDF document text
  • http://galluccifaibano.it/userfiles/file/13745449306.pdfIn PDF document text
  • https://mtmnetwork.net/uploadEditor/files/20366956743.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c955336a82---45859604610.pdfIn PDF document text
  • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/alm2q1khis8nhrrtus5flfhfp8/6652977364.pdfIn PDF document text
  • http://katachizu.com/img/news/files/19529004086.pdfIn PDF document text
  • http://hyundai-dongdo.vn/images/files/ratosaku.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=doctor+letterhead+template+free+wordPDF 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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