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://infrive.ru/uplcv?utm_term=billy+ray+and+tish+cyrus PDF link annotation

  • http://fishngrill.iorderfoods.com/uploads/files/19606364422.pdfIn PDF document text
  • https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/vatofuwaxive.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/161492126c4120---nibejuvofunoxajuposazufez.pdfIn PDF document text
  • http://hotelclinton.it/userfiles/files/xexufe.pdfIn PDF document text
  • http://driscollandgibson.com/images/edit_images/file/25615984785.pdfIn PDF document text
  • https://strategieb2b.com/userfiles/file/81741813120.pdfIn PDF document text
  • https://harteron.ee/userfiles/file/jojeririgujuzedozofes.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/56551095548.pdfIn PDF document text
  • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/l6up49mjk84fhbpgmev6fu8sqb/23060872660.pdfIn PDF document text
  • https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/48653694487.pdfIn PDF document text
  • http://inhome360.ru/admin/ckfinder/userfiles/files/fisadu.pdfIn PDF document text
  • http://learningkey.org/userfiles/77216319640.pdfIn PDF document text
  • http://robwalker.net/fckupload/file/92182605431.pdfIn PDF document text
  • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/8448761fe940337e9dd840de0ce49d3f/82407300517.pdfIn PDF document text
  • http://haithuanphat.com/uploads/files/43422263335.pdfIn PDF document text
  • http://chiari-web.com/ckfinder/optimist/files/ronamitogesulovaxijaxexe.pdfIn PDF document text
  • http://financesnadno.cz/upload/file/lenulozij.pdfIn PDF document text
  • http://galeriejacqueselbaz.com/userfiles/file/42054825320.pdfIn PDF document text
  • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/juvapotemebirawidexubip.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109100855215492.pdfIn PDF document text
  • http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/90441553609.pdfIn PDF document text
  • http://nawooelcs.com/upload/userfiles/2021/09/files/210901105200.pdfIn PDF document text
  • http://www.ghidmariaj.ro/app/webroot/files/ckfinder/userfiles/files/ganipisumedugemezetakul.pdfIn PDF document text
  • http://mynigaoe.com/upload/file/20210909100042.pdfIn PDF document text
  • https://weilmclainboiler.ca/fck_upload/file/93280856470.pdfIn PDF document text
  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/nunv13lbr46i5di3ie2irgme7s/59349010176.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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