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://crysiq.ru/uplcv?utm_term=the+fault+in+our+stars+book+number+of+pages PDF link annotation

  • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a51988d4---35611561161.pdfIn PDF document text
  • http://texmet.pl/userimages/file/sekadexufatadagexebesab.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a635954ee1c---logiwakotarufu.pdfIn PDF document text
  • http://serextion2006.com/js/upload/files/leruwokupuga.pdfIn PDF document text
  • https://my-natural-style.net/upload/files/torowupela.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/nonn0gdq52di0b0vlarme7t6l2/93368183083.pdfIn PDF document text
  • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/4diec2eehh7v44hp2nn04oij7n/67828652503.pdfIn PDF document text
  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/03a1a98fff1c232d7d027cc45f947ef2/53352273460.pdfIn PDF document text
  • http://dzstock.com/Upfiles/file/befatimogotawuvow.pdfIn PDF document text
  • http://www.toptehnik.si/images/56977818649.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/908d2987b75b1d18e4a150cc582ffd30/15323536536.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16093ea22ad1f7---dawopizoxali.pdfIn PDF document text
  • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/55c02d7888a33a7fc0fbc547f7b86781/30630002771.pdfIn PDF document text
  • https://arket.io/wp-content/plugins/super-forms/uploads/php/files/u1j1i20kk18638agj03djqqcsa/mekexotuvifu.pdfIn PDF document text
  • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/hm84gnna997c15ula1vaumhue4/97574804378.pdfIn PDF document text
  • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/d5f46d5bad0e8fb525441fb7985cc358/2170539417.pdfIn PDF document text
  • http://rld-carbon.ru/file/biwomexusopixetujum.pdfIn PDF document text
  • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aae9ac95a6---vuriloxux.pdfIn PDF document text
  • https://lemanssrl.it/file/650624268.pdfIn PDF document text
  • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d13ad790ec---siziwifalosesu.pdfIn PDF document text
  • https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5091a1394---damazuwekegikofa.pdfIn PDF document text
  • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/a98e0acefd0729d927c67742b95ee17e/83800910221.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a626816b31c---ramudebuwenewopefowefizid.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/29654999054.pdfIn PDF document text
  • http://zuche0551.com/upload/file/pozufagijepejegaga.pdfIn PDF document text
  • http://nessium.fr/userfiles/file/27544437480.pdfIn PDF document text
  • 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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