Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://ketchas.ru/uplcv?utm_term=how+to+draw+a+giraffe+face PDF link annotation

  • http://elitvorota.ru/f/file/pepoj.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16080d07731791---fejodesos.pdfIn PDF document text
  • http://zkojicin.cz/userfiles/file/zifovofowabatuweje.pdfIn PDF document text
  • https://dolnoslaskialarmsmogowy.pl/imgturysta/files/90406749850.pdfIn PDF document text
  • http://dblbtech.com/userfiles/file/rokixiwuni.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/kupeze.pdfIn PDF document text
  • https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/36ev1s4e2s3j0aqa2dir86fgav/lumezi.pdfIn PDF document text
  • http://saga.diamonds/uploads/ckfinder/files/74471689512.pdfIn PDF document text
  • https://electrabicycles.pl/app/webroot/uploads/file/16249685540441.pdfIn PDF document text
  • http://vralumni.com/clients/7/71/71e0d721b250bdad3664bf54e70089ab/File/57254085747.pdfIn PDF document text
  • https://znalac.com/userfiles/file/88331602861.pdfIn PDF document text
  • https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/14373558261.pdfIn PDF document text
  • http://holzbau-napetschnig.at/92994160361.pdfIn PDF document text
  • http://portalpr-b2b.es/img/user///file/_0440497001625241646.pdfIn PDF document text
  • http://tnslib.su/userfiles/files/besab.pdfIn PDF document text
  • http://riph.pl/userfiles/file/jomipi.pdfIn PDF document text
  • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a5bb3cbb0d2---siwawejutufizanuwele.pdfIn PDF document text
  • https://floresdeserrezuela.com/aym_image/files/79101977252.pdfIn PDF document text
  • http://komputerzagrosze.pl/userfiles/file/75464235959.pdfIn PDF document text
  • http://churchtextile.com/userfiles/file/pururakediwekoborepaz.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecd3a19e7ce---33857226481.pdfIn PDF document text
  • https://manenshop.com/upload/files/sadinowizewadiwilijat.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd9d3a2597---45132194351.pdfIn PDF document text
  • http://avvolodin.ru/upload/file/patalakotutakefefidode.pdfIn PDF document text
  • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082bb7686bcf---77775016749.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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