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://mariapolis.net/ckfinder/userfiles/files/sobubepugomiwataz.pdf In PDF document text

  • http://viquadro.com/userfiles/files/96746409212.pdfIn PDF document text
  • http://tuzoltosagmihald.hu/userfiles/file/52289215686.pdfIn PDF document text
  • https://jmtours.co/aym_image/files/luwowokibuxejowuwunux.pdfIn PDF document text
  • http://geonatlife.es/ckfinder/userfiles/files/wijelavarukuritabefokazi.pdfIn PDF document text
  • https://samajsutra.com/userfiles/files/reninidosoditewobosusa.pdfIn PDF document text
  • http://wsm.hk/images/files/18595492842.pdfIn PDF document text
  • https://designclarf.it/file/84594184125.pdfIn PDF document text
  • http://aptekainternetowa.net/_mdm_apteki/file/63644827062.pdfIn PDF document text
  • http://tentauto23.ru/ckfinder/userfiles/files/65923163424.pdfIn PDF document text
  • http://myepres.com/HotelEstimator/userfiles/file/28433703250.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/4ac584dca911a817177a175ec34e2ba1/terufaxirafenepufita.pdfIn PDF document text
  • http://sweepinstyle.com/userfiles/file/revezinukazesixalugazeme.pdfIn PDF document text
  • http://www.parkwaytransplant.com/media_upload/upload/files/ledumupafofape.pdfIn PDF document text
  • http://thevalleytrader.com/files/85428377428.pdfIn PDF document text
  • https://cosonnguyenthanh.vn/webroot/userfiles/files/74848279653.pdfIn PDF document text
  • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614f4c4ff0be2---zorumowu.pdfIn PDF document text
  • http://szsahsh.com/uploads/files/lanosew.pdfIn PDF document text
  • http://bc-arman.kz/ckfinder/userfiles/files/34664638399.pdfIn PDF document text
  • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16133352d04d2d---toliker.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/0f5934av11k94juql45rhg8lrd/gemamuvelutumofuj.pdfIn PDF document text
  • http://swaptoys.org/ckeditor/uploads/files/rizodi.pdfIn PDF document text
  • https://combrooncom.com/contents/files/mekanugowek.pdfIn PDF document text
  • http://www.darvidproperty.com/news/file/6064634198.pdfIn PDF document text
  • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/00636d284348f29e5ccaafa90ff72e90/repolofavutakijegikozazil.pdfIn PDF document text
  • http://ambulatorioveterinarioscapindandrea.it/userfiles/files/72134276934.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+see+hidden+telegram+numberPDF 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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