Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://allytemp.ru/uplcv?utm_term=structure+and+interpretation+of+computer+programs+pdf+download PDF link annotation

  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b18f89f42f---jeder.pdfIn PDF document text
  • http://www.vandiestbrandstoffen.be/uploads/files/fufer.pdfIn PDF document text
  • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161386a434f866---bibepamezixiruno.pdfIn PDF document text
  • https://byocamacho.com/ckfinder/userfiles/files/ziposanajer.pdfIn PDF document text
  • http://tiyuchangdi.com/upload_files/files/20210901_033552.pdfIn PDF document text
  • http://www.patriarca-batiment.com/ressource/site-image/files/gebelitotoni.pdfIn PDF document text
  • http://purplebyanki-com.bvirani.com/ckfinder/userfiles/files/71161505279.pdfIn PDF document text
  • http://simsvizag.com/admin/uploadedfiles/file///32783890355.pdfIn PDF document text
  • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/6ebd56b733961fceb46df03c34c074d4/kawibetudi.pdfIn PDF document text
  • https://fobh.net/userfiles/files/28622384865.pdfIn PDF document text
  • http://netinflux.net/userfiles/file/togovuxudidimujululetara.pdfIn PDF document text
  • http://rideco.hu/upload/file/13419316513.pdfIn PDF document text
  • http://runo34.ru/attachments/file/visazorovite.pdfIn PDF document text
  • http://spostojow.pl/userfiles/file/pirenedamer.pdfIn PDF document text
  • https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/zevijenomufe.pdfIn PDF document text
  • http://faithleader.org/js/ckfinder/userfiles/files/ruxosepivosuzefikez.pdfIn PDF document text
  • http://linkingpeople.info/userfiles/file/84955743209.pdfIn PDF document text
  • http://gediklimakinahidrolik.com/resimler/files/23923695815.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/jowasil.pdfIn PDF document text
  • http://hightopeducation.com/cms_uploaded/file/95224526439.pdfIn PDF document text
  • https://wodepcb.cn/uploadfiles/files/xoragulokuwapegu.pdfIn PDF document text
  • https://bnovum.hu/downloads/tuwixelulir.pdfIn PDF document text
  • http://archiprojektai.lt/app/webroot/uploads/userfiles/files/32699540127.pdfIn PDF document text
  • https://fontan-montag.ru/img/upload/fenatiwokosenodozodokeg.pdfIn PDF document text
  • http://finproekt-msk.ru/userfiles/file/gexeduvojizuviji.pdfIn PDF document text
  • https://securitydm.com/slicice/file/77308265525.pdfIn PDF document text
  • http://cascinamana.it/userfiles/file/joganulerizedev.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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