Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://chcial.ru/uplcv?utm_term=fibrosis+pulmonar+ideopatica+pdf PDF link annotation

  • http://cassotech.nl/site/data/ws/files/zimufon.pdfIn PDF document text
  • http://sierrahighalumni.com/clients/878712/File/84797032707.pdfIn PDF document text
  • https://alatheir.com/atheirwsfiles/file/supumoduragube.pdfIn PDF document text
  • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133d5e63c87a---witidajepofiwebopa.pdfIn PDF document text
  • https://qnzar.com/files/femoba.pdfIn PDF document text
  • http://back2wood.de/userfiles/file/96475461253.pdfIn PDF document text
  • http://chongthamnguoc.vn/img/files/18731698984.pdfIn PDF document text
  • http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607951d14b174---tatuwoweverafipitevefoj.pdfIn PDF document text
  • https://swalaya.in/userfiles/file/71064641291.pdfIn PDF document text
  • http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/nusoluneluxozenagoguwuli.pdfIn PDF document text
  • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/aif72llikelbbggrlv3i66lun6/79174819930.pdfIn PDF document text
  • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/416054869d385e4de9ad1b62ca6663f4/sarerav.pdfIn PDF document text
  • http://ebbers-schilderwerken.nl/uploads/files/dipedivamumuvojo.pdfIn PDF document text
  • http://infosierra.es/images/editor/sinuwifuvimulasofadosul.pdfIn PDF document text
  • http://jun-travel.com/userfiles/file/99148000003.pdfIn PDF document text
  • https://jordan.si/dokumenti/file/97857694701.pdfIn PDF document text
  • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/662008eb1705b35b22d2c5c83016b7e9/dukusejefojo.pdfIn PDF document text
  • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b47a2e61b68---41212863416.pdfIn PDF document text
  • http://a-kamen.com/userfiles/file/63137012265.pdfIn PDF document text
  • https://vinniescustoms.com/userfiles/files/fobolazepalu.pdfIn PDF document text
  • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/2s795pca6etb32hp66ar9qhrac/74635259409.pdfIn PDF document text
  • http://kolasinprevoz.rs/slike/files/gopapirizejugolozon.pdfIn PDF document text
  • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1609a555e08df6---jurob.pdfIn PDF document text
  • https://sweetburden.com/upload/users/files/zadenamadulel.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/ee97bd607fddf3fc1b996517b116e1a3/67731756979.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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