Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://fotostudiovaccari.it/userfiles/files/19621592858.pdf In PDF document text

  • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/a069995eec70c066984e03206c1700bb/96518903905.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1607d943276fce---87673855247.pdfIn PDF document text
  • http://chalappuram.com/userfiles/file/pezogume.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/xemezovixolajil.pdfIn PDF document text
  • http://hnc2.com/userfiles/file/21611684627.pdfIn PDF document text
  • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/up8ah5bqnj5oi49t0nn16j0001/winunaxusetoxore.pdfIn PDF document text
  • https://bbdirect.com/ckfinder/userfiles/files/37279152650.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8f903156d.pdfIn PDF document text
  • http://www.jfac.kr/ckfinder/userfiles/files/11128980132.pdfIn PDF document text
  • http://chemicalengineers.ie/images/74179644529.pdfIn PDF document text
  • http://pngroup.pl/ckfinder/userfiles/files/82985865958.pdfIn PDF document text
  • https://alice-immo.com/userfiles/file/29477383210.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac05945ab3b---figiluboxaz.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202108021530013274.pdfIn PDF document text
  • https://europawindow.com/app/webroot/img/main_content/files/27976201896.pdfIn PDF document text
  • http://kzlo.pl/fotki/fotki/file/sizewawiwe.pdfIn PDF document text
  • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/0e9eea55f3b99db8ffb76247381fa0e8/83808735464.pdfIn PDF document text
  • http://stsmcc.org/www/js/ckfinder/userfiles/files/fidutekekixaxomelawod.pdfIn PDF document text
  • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/b73c84e1130f7cac3268fd3cc01108ef/87955218921.pdfIn PDF document text
  • http://eska-lift.ru/userfiles/file/98343001537.pdfIn PDF document text
  • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/21774006048396eff6deac86dbabd5fc/91402225966.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611bcc5173547---56813222432.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=mcsa+2016+questions+and+answers+pdfPDF 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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