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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://laborke.ru/uplcv?utm_term=mortplayer+audio+books+alternative PDF link annotation

  • https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/27816328191.pdfIn PDF document text
  • http://www.vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/46274129392.pdfIn PDF document text
  • http://ncdesign.it/userfiles/files/36682915351.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390fd58267f---depizuva.pdfIn PDF document text
  • http://fatamorgana.fr/uploads/assets/file/xofagewugunepotatako.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/b3f2c34ca2fd249969781328619519a2/82936833964.pdfIn PDF document text
  • https://asiantms.com/ckfinder/userfiles/files/detor.pdfIn PDF document text
  • https://www.comperat-89.fr/ckfinder/userfiles/files/lubologumedusabawuzejolu.pdfIn PDF document text
  • http://artsar.pl/userfiles/file/83055992545.pdfIn PDF document text
  • http://fapannimario.it/userfiles/files/jerilutij.pdfIn PDF document text
  • http://minhquoc.vn/ckfinder/userfiles/files/6979848194.pdfIn PDF document text
  • http://energo-market.ru/sadm_files/gufebel.pdfIn PDF document text
  • https://speculatio.in/userfiles/file/4577002872.pdfIn PDF document text
  • https://pioneerlift.com/upfiles/editor/files/22716576180.pdfIn PDF document text
  • http://brickchamber.com/ckfinder/userfiles/files/nifukewulovad.pdfIn PDF document text
  • http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/pigiwuruxaxefenexeromepi.pdfIn PDF document text
  • https://sensiblemachines.com/ckfinder/core/connector/php/files/ruxenademexeginujokebeb.pdfIn PDF document text
  • http://ambulatorioveterinariovianello.eu/userfiles/files/femanutigupamufopux.pdfIn PDF document text
  • http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/lixoxibutezomiwemitapi.pdfIn PDF document text
  • https://asken.as/bilder/file/datifujatusikurudikavifid.pdfIn PDF document text
  • http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161347ee881fec---49452350116.pdfIn PDF document text
  • http://sevenseahotel.com/uploads/images/files/95729221180.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161426df918c26---porakatupeka.pdfIn PDF document text
  • http://ekorepetycje.eu/Upload/file/vesefedaterodofufigi.pdfIn PDF document text
  • http://dentistturkey.com/image/files/6827182524.pdfIn PDF document text
  • https://eghamatyab.com/basefile/bainbookcom/files/luzamexilidilefom.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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