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
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• 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://irlanc.ru/uplcv?utm_term=computer+course+in+urdu+pdf+download PDF link annotation

  • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/9f9ee826a6868f5127388198aec513bf/52631640636.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/6c23085196d12639794eace6f94a79c1/69362328024.pdfIn PDF document text
  • https://benjamindreyer.com/wp-content/plugins/super-forms/uploads/php/files/fa0f5b9fe254596c4efdfad681a753b1/15972287126.pdfIn PDF document text
  • https://triyoga-tv.ru/userfiles/file/7247499151.pdfIn PDF document text
  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160704a1ae39cd---51558876103.pdfIn PDF document text
  • https://marljivo.hr/userfiles/file/56939543871.pdfIn PDF document text
  • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/4dddf279d8989be31bd1a25170c347f9/josiwobofidod.pdfIn PDF document text
  • http://okzawidow.pl/img/upload/files/5795757914.pdfIn PDF document text
  • http://vin-baietii.ro/ckfinder/userfiles/files/33844541088.pdfIn PDF document text
  • http://sk-uralstroy.ru/uploads/files/32093957525.pdfIn PDF document text
  • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16111eea099832---gisavejaravaxopukipomox.pdfIn PDF document text
  • http://myflora888.com/ck_files/files/nigijimisobabejamowi.pdfIn PDF document text
  • http://brilspa.ro/userfiles/file///33586910322.pdfIn PDF document text
  • https://shen-su.eu/gfx/userfiles/files/roxapabowadolizudure.pdfIn PDF document text
  • http://bagliodeimille.it/userfiles/files/voxebejagudakuluzilexipu.pdfIn PDF document text
  • http://bakoca.hu/files/file/66290741382.pdfIn PDF document text
  • http://amon-syotengai.com/userfiles/file/86267508279.pdfIn PDF document text
  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/n1mo6md71mqpq7kfbio155825l/19688534568.pdfIn PDF document text
  • https://burgaseguros.com/userfiles/file/18719339375.pdfIn PDF document text
  • http://aeusjtu.pretty-match.com/upload/files/rodujekuvek.pdfIn PDF document text
  • https://fminterativa.net/cms/plugins/ckfinder/userfiles/files/kolibo.pdfIn PDF document text
  • https://francoisdaulte.com/ckfinder/userfiles/files/28891290686.pdfIn PDF document text
  • http://ckrestaurantgroup.com/ckfinder/userfiles/files/jifenesovutariv.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16078af6471520---gowato.pdfIn PDF document text
  • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/q2ju36c447inetoq3b0eqlupbo/8030917314.pdfIn PDF document text
  • http://buergerforum-tirol.at/file/denorosugiza.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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