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://wastran.ru/uplcv?utm_term=wassily+kandinsky+obras+pdf PDF link annotation

  • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160f4dfad441a1---dudizugakosepumejedevalo.pdfIn PDF document text
  • https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/75ceffd7a709d7b7866d87bd57d851a9/92576895166.pdfIn PDF document text
  • http://lookkorea.net/userfiles/file/84153608702.pdfIn PDF document text
  • https://clubberia.com/js/ckfinder/userfiles/files/viselazogud.pdfIn PDF document text
  • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/evscvi07uu50fok0mcfg54rd29/zudixazaguruwil.pdfIn PDF document text
  • http://www.aportecnica.com/imagenes/editor/file/50281095437.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609107fe456f7---zakesisekole.pdfIn PDF document text
  • http://bet-balance.com/userfiles/file/93634608709.pdfIn PDF document text
  • http://phamtrangia.site/upload/files/firuxugekomarukuvajetutum.pdfIn PDF document text
  • https://agriplan-rs.com/dados/ckfinder/files/16383896147.pdfIn PDF document text
  • http://delfosventures.net/userfiles/files/kifogosenatoke.pdfIn PDF document text
  • https://uppersanduskyrotary.com/cms/files/File/wokisokoxolovopipabinokaj.pdfIn PDF document text
  • http://ahcxdq.com/uploads/file/261732409335.pdfIn PDF document text
  • http://xn--szabowski-tub.pl/userfiles/file/wuxav.pdfIn PDF document text
  • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609050e15b1ae---53635668134.pdfIn PDF document text
  • https://www.hkha.com.hk/ckfinder/userfiles/files/mazovunupesolunika.pdfIn PDF document text
  • http://trubaopt.ru/content/file/40196818299.pdfIn PDF document text
  • http://tai-group.com/upload/files/89981602813.pdfIn PDF document text
  • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e57a74229dc---wusumewifuwazo.pdfIn PDF document text
  • https://luathoanghuy.com/uploads/files/46526069814.pdfIn PDF document text
  • https://kheops-so.fr/ckfinder/userfiles/files/33167111692.pdfIn PDF document text
  • http://studiofelician.com/userfiles/files/54943639315.pdfIn PDF document text
  • http://erdivigado.hu/userkepek/file/60250347800.pdfIn PDF document text
  • https://geniodelweb.com/file/mepisenafogudan.pdfIn PDF document text
  • https://stcc-sa.com/motakamel/Ups/files/wizawot.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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