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://catamma.ru/uplcv?utm_term=manual+gearbox+car+parking+apk+indir+download PDF link annotation

  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/046ec1d7c89fd583569a87aad8564097/64867481566.pdfIn PDF document text
  • http://extintoresorigen.com/images/editor/rilobanim.pdfIn PDF document text
  • http://fairway.cc/images/blog//file/20868446875.pdfIn PDF document text
  • https://led7.ru/file/5863397935.pdfIn PDF document text
  • https://albawadiroad.com/userfiles/files/pujadipulesijofosamape.pdfIn PDF document text
  • http://holidayinntorino.com/userfiles/files/xetotesozutofareziso.pdfIn PDF document text
  • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6489ae53fd---57071455565.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/dojimawamiwisedoxemubox.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d848554f995---vebutuvijumu.pdfIn PDF document text
  • http://sanmorales.es/userfiles/files/23814408829.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/3ntgfagbsp9n7vd4ipvqdi6hg2/tarepenezisukewasajulimev.pdfIn PDF document text
  • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/3fa546b93400619c74fce504f2c2143b/18146793800.pdfIn PDF document text
  • https://pabrikangka.com/contents//files/vafagimenokusiroxo.pdfIn PDF document text
  • http://nwatchonline.info/userfiles/file/vuzibidonosibuwapuk.pdfIn PDF document text
  • http://taiwan-casters.com/userfiles/file/naviranosozolivobiwumited.pdfIn PDF document text
  • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/6e1af6165634612653f8579c39a0f27c/8469867181.pdfIn PDF document text
  • http://zentrumok.com/userfile/files/51168286715.pdfIn PDF document text
  • http://vekosgroup.ru/userfiles/file/72650381887.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/54484612879.pdfIn PDF document text
  • http://unityproductions.com/upload/files/sukumopedegom.pdfIn PDF document text
  • http://guowangcable.com/d/files/87794371212.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/dusumum.pdfIn PDF document text
  • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a88495eab7a---ronivitejudi.pdfIn PDF document text
  • https://gloriamus.org/Uploads/userfiles/files/5190362897.pdfIn PDF document text
  • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/1e21882366327fd288bcba05c037271a/26517945656.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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