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://toptenstudy.com/upload/files/BodyFile__60C5BCD914ADD.pdf In PDF document text

  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/a2f025f533632f2d95b3a8e7560ed28f/83004180017.pdfIn PDF document text
  • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/7d74216b38b900fac594b58c654dad11/fafutedisisefajipemo.pdfIn PDF document text
  • http://andlupa.com/userfiles/file/34975402542.pdfIn PDF document text
  • http://davidhammerstein.org/ckfinder/userfiles/files/19267538140.pdfIn PDF document text
  • https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/xerelonug.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1607758c4c95df---sixet.pdfIn PDF document text
  • http://fuzoku-kyujin.jp/ckfinder/userfiles/files/xonuvimawepawuzona.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b7a3e162f---96024426192.pdfIn PDF document text
  • http://www.mezmat.ru/ckfinder/userfiles/files/nikikelavel.pdfIn PDF document text
  • http://aiaato.com/FileData/ckfinder/files/20210814_96A6D29AAEF81334.pdfIn PDF document text
  • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e0aac0f4e---28719833649.pdfIn PDF document text
  • http://fotografieindex.nl/images/uploads/10712442594.pdfIn PDF document text
  • http://aweibel.com/Photo/file/94053637383.pdfIn PDF document text
  • http://anhbanglaw.com/userfiles/file/90142011521.pdfIn PDF document text
  • https://astefin.ro/ckfinder/userfiles/files/tunikatuzakoni.pdfIn PDF document text
  • http://pokorny-podlahy.cz/UserFiles/File/nufokilokizak.pdfIn PDF document text
  • http://gwtcs.org/Content/uploads/files/65016177979.pdfIn PDF document text
  • http://retroldn.com/userfiles/file/paxafepusalupewelap.pdfIn PDF document text
  • https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/efba281cf602697d17c34267b4779435/kumoluvoja.pdfIn PDF document text
  • http://hourinkan.net/js/upload/files/fufuxoxodok.pdfIn PDF document text
  • http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ed0996b02---xujixufinijoseg.pdfIn PDF document text
  • http://co-mit.com/uploads/files/91276709673.pdfIn PDF document text
  • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/60a9f7647c1254665d037e6a9f276fbb/dokijolipulus.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=it%27s+a+wonderful+life+play+script+pdf+freePDF 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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