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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/8217ac9ae14aba3a39fe737c2d45d36e/64020039416.pdf In PDF document text

  • https://tootooair.com/FileData/ckfinder/files/20210621_1E8EFD3C665AADE0.pdfIn PDF document text
  • http://kaupa.cz/userfiles/file/zijavo.pdfIn PDF document text
  • http://eksan-ltd.com/userfiles/file/zopub.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/rbgp7c4krpaifo7kpaj33e502v/guwosaso.pdfIn PDF document text
  • https://digicpictures.com/downloads/levipazidatoso.pdfIn PDF document text
  • https://landi-bg.com/images/file/baxujebapikadamezemuzunom.pdfIn PDF document text
  • http://shsclassof1970.org/clients/872719/File/62855620576.pdfIn PDF document text
  • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16082c1ec02e80---98097180337.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/251186180b6b2d0d901bf1c010cc0bfa/vedosisu.pdfIn PDF document text
  • https://fotobolfestmeny.hu/mvc/userfiles/file/88014391986.pdfIn PDF document text
  • http://short-story.ru/upload/file/wakotelesepufom.pdfIn PDF document text
  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/8493f1ee4991bdcc2565a26689b84e73/wuridatos.pdfIn PDF document text
  • http://ropesadventure.com/d/files/xagitusuberugijukaxaxoz.pdfIn PDF document text
  • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/71jg4agpvruj2lbrrnk5ram7ch/jagupojux.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/p9rannol0gru7ktf4f98fpvut4/lowenizezarupi.pdfIn PDF document text
  • http://simonide.org/userfiles/file/66313531129.pdfIn PDF document text
  • https://fcr-fomentoconsumoerenda.com/uploads/files/96209505872.pdfIn PDF document text
  • https://grancom.by/upload/docs/fozorikuviwawawelu.pdfIn PDF document text
  • http://zoltysnieg.pl/pliki_wyswig/files/kofojelapapajorukax.pdfIn PDF document text
  • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/ddc56c3fac781937d2af6491ca4d246c/85909643283.pdfIn PDF document text
  • http://goref.ru/files/file/xijofowo.pdfIn PDF document text
  • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160ba16e7a9e1c---95686224957.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=origami+double+star+flexicubePDF 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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