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://laborke.ru/uplcv?utm_term=epistemologias+do+sul+pdf+download PDF link annotation

  • https://noithatkuongthinh.com/uploads/files/vorifuvi.pdfIn PDF document text
  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/c83ce4e12c72a6bf25348b2f6e1009e2/7535062395.pdfIn PDF document text
  • http://www.tobywells.org/media/fckdir/file/jezimamepakiwixipoxidiv.pdfIn PDF document text
  • http://english-life.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16074fba858c85---joxoganema.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/putinitebudemiler.pdfIn PDF document text
  • http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/f23dd5d0251b6f609dbee441e595b4e2/79835674902.pdfIn PDF document text
  • http://sobinco.cz/ckfinder/userfiles/files/xipizaxobividetepofaj.pdfIn PDF document text
  • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/8kthmmns45gqgnfcsos2sqrfi0/bojaratatunuvipotanuvevu.pdfIn PDF document text
  • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/8010c5a68a1035ec0e98548d3d288301/katukanoxo.pdfIn PDF document text
  • http://ilovechardonnayhills.com/userimages/xerube.pdfIn PDF document text
  • https://begili.com/uploads/image/files/lafuviw.pdfIn PDF document text
  • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/b892e532e794ea028c8fb377f42a253c/92324568125.pdfIn PDF document text
  • http://all-vehicle.net/js/upload/files/3174332773.pdfIn PDF document text
  • https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606efa121f87d---60710051030.pdfIn PDF document text
  • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/12241710960979e255a385.pdfIn PDF document text
  • http://fireprovietnam.net/luutru/files/76347600692.pdfIn PDF document text
  • https://gencerenerji.com/resimler/files/viwib.pdfIn PDF document text
  • https://delphin-restaurant.com/ckfinder/upload/files/74222906846.pdfIn PDF document text
  • http://www.radanhorse.com/resource/files/busezakevibediregunak.pdfIn PDF document text
  • http://dnepropress.net/files/file/33103875823.pdfIn PDF document text
  • http://walkandwagforveterans.com/clients/9/96/96cc06f6b2a5429c1325f0b535cddba6/File/89461880328.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16090d3f3dc81e---tigarasejebevurevanodod.pdfIn PDF document text
  • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/31239b1a0a1d5ff1fa7a64d1a638669b/18651943779.pdfIn PDF document text
  • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c7449960d80---bobawobatam.pdfIn PDF document text
  • http://alphanaturehk.com/userfiles/file/8931429436.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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