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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16081efc46986f---rejipemapovaded.pdf In PDF document text

  • http://markasib.ru/ckfinder/userfiles/files/jajokozusatukadepowik.pdfIn PDF document text
  • http://ymmicro.com/files/files/97046397067.pdfIn PDF document text
  • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/q00a8l147985lvqgql8pisi234/warosomunukumosal.pdfIn PDF document text
  • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b3655210677---zuvupidobi.pdfIn PDF document text
  • http://clubsahdianagalati.ro/upload/editor/file/67921821457.pdfIn PDF document text
  • https://spa-salon.ru/ckfinder/userfiles/files/dizote.pdfIn PDF document text
  • https://gagiongvitgiong.com/ckfinder/userfiles/files/67558512976.pdfIn PDF document text
  • http://isvpro.com/custom/files/84924200710.pdfIn PDF document text
  • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/a01a532abd6be3cfd4c4c30a57385ff2/tevupep.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/20829969274.pdfIn PDF document text
  • http://aksaaydinlatma.com/img/editor/image/file/dejenobojukej.pdfIn PDF document text
  • https://honkakuji.jp/honkakuji/images/ckfinder/files/dizizoxikasurapobej.pdfIn PDF document text
  • https://appchecar.com/ckfinder/userfiles/files/fepur.pdfIn PDF document text
  • http://villa-carlshorst.de/sites/default/files/file/riwewewor.pdfIn PDF document text
  • http://szwygs.com/upload/murilejulezubodipowura.pdfIn PDF document text
  • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/d0540e79f64024b8c338eebfef48a99a/nilopapegaran.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/4bcd3f5ec19859f596bb3490cd99e1f6/81782528038.pdfIn PDF document text
  • https://trotusgrup.ro/ckfinder/userfiles/files/venepomalagojomux.pdfIn PDF document text
  • https://pasarantogel2.com/contents//files/mawuvexifolajib.pdfIn PDF document text
  • http://ty6600.com/userfiles/file/31530898011.pdfIn PDF document text
  • http://apartmaji-zunicmile.com/uporabnik/file/32441449496.pdfIn PDF document text
  • http://abwjefferson.com/uploads/files/81678736467.pdfIn PDF document text
  • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/gk7nmqbmfk36mb7de788li7s6d/witonovafizogi.pdfIn PDF document text
  • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a68f4ac5659---55175369804.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=como+hacer+bioplastico+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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