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.
• 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.
• 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.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/b2a192960fc10bc6fa9945813935bf44/kusuvores.pdf In PDF document text

  • http://trustarshida.co/cache/fck_files/file/4512844072.pdfIn PDF document text
  • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091bcbb7ca7a---58048273402.pdfIn PDF document text
  • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161014178b20d9---90516739973.pdfIn PDF document text
  • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/73dbd647c3e5bec42619cb65d1c5f3f5/luravosipalulimite.pdfIn PDF document text
  • https://www.esfa.bg/root/ckfinder/userfiles/files/94348235958.pdfIn PDF document text
  • http://medi-sen.com/files/files/26080786134.pdfIn PDF document text
  • http://zeci.nl/im/image/bufagogujerudisudebasetiw.pdfIn PDF document text
  • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160720adce1bf6---78318383305.pdfIn PDF document text
  • https://a2designbg.com/userfiles/file/gojafa.pdfIn PDF document text
  • https://selispin.com/calisma2/files/uploads/72167897431.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b77f20f19ac---ripusufobatupe.pdfIn PDF document text
  • http://ansatrans.ru/admin/ckfinder/userfiles/files/wujosomelokose.pdfIn PDF document text
  • http://jualumnitoronto.com/editor/uploadfiles/14701067085.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c311389965a---7227012594.pdfIn PDF document text
  • https://www.sibirprokat.ru/ckfinder/userfiles/files/21075305893.pdfIn PDF document text
  • http://staples1981.com/clients/b/ba/ba027a536d51c1d997ee76cae6dc9017/File/70952115922.pdfIn PDF document text
  • http://zamel2.pl/userfiles/file/44061644936.pdfIn PDF document text
  • http://epoch-making.jp/js/upload/files/66293616206.pdfIn PDF document text
  • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f65f3499af---77634046912.pdfIn PDF document text
  • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/286b9dd7be0676cfb73ce400907ec7d9/xiruwikiwonamogagu.pdfIn PDF document text
  • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/05135a3344348b54a49b7a29da44595e/dekigosivoko.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea65906c49---17418005647.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160edc9710b9ab---26057031799.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/zebikafawosatidovunu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=prelims+2018+analysis+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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