Malicious PDF — malware analysis report

Heuristics 7

• 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 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 http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4dc12a75b---xoxinemedagopisojomutu.pdf In PDF document text

  • https://baxsporthorses.com/userfiles/file/11696370123.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/3ljagfelm6ec0kqteinluv7jn0/86023235977.pdfIn PDF document text
  • http://citescolairedeledit.com/include/file/34001829247.pdfIn PDF document text
  • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160755171a53a6---1820156023.pdfIn PDF document text
  • http://creativeindustries.ru/uploads/userfiles/file/vulilikofikigeroxelevos.pdfIn PDF document text
  • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/eca63a6032ecf760f4bf6cebe029c0cf/8879307779.pdfIn PDF document text
  • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612e489a039a6---42397134667.pdfIn PDF document text
  • https://istanajpdua.com/contents//files/tusoganerabimogu.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/2b6a63174479c38326dfaecd22c14a9d/monolerogaxixatudezug.pdfIn PDF document text
  • http://navigator-nsk.ru/userfiles/file/fokipijenapobe.pdfIn PDF document text
  • http://etyekilovarda.hu/userfiles/file/17176905097.pdfIn PDF document text
  • https://emmaushuis.org/pages/nelevigoxikipilaner.pdfIn PDF document text
  • http://kartinatv.org/uploads/files/12475499023.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160daf6af19a89---gawaturetonukukuzituzuk.pdfIn PDF document text
  • http://teusz.pl/UserFiles/file/95540345990.pdfIn PDF document text
  • http://polyacer-ecp.com/userfiles/files/20210827_233005.pdfIn PDF document text
  • https://harkakotony.hu/UserFiles/file/58855069292.pdfIn PDF document text
  • http://absolutelyneon.com/userfiles/file/sadiviwapun.pdfIn PDF document text
  • https://used-machinetools.ro/app/webroot/files/userfiles/files/48042724414.pdfIn PDF document text
  • http://archerelectricsupply.com/userfiles/file/14231009719.pdfIn PDF document text
  • https://trotusgrup.ro/ckfinder/userfiles/files/49901993110.pdfIn PDF document text
  • http://habitat3.eu/userfiles/files/xemigufifowadorodugeliluk.pdfIn PDF document text
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a06b2592d50---17371270976.pdfIn PDF document text
  • http://yaeram.com/userData/board/file/dijitewexanog.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=possessive+case+free+worksheetsPDF link annotation
  • 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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