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 https://flavio-tonon.it/public/file/97385156702.pdf In PDF document text

  • http://alrehabourhome.com/userfiles/files/68982270960.pdfIn PDF document text
  • http://diamantina-joaillerie.com/ckfinder/userfiles/files/wusasirawemiji.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/01171f63edce470dec6f044e10d7d3e0/48032092179.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/97122446044.pdfIn PDF document text
  • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160993cd4c340c---gisevepevuluxuremu.pdfIn PDF document text
  • https://vienhung.com/webroot/img/files/52964941032.pdfIn PDF document text
  • https://bengalroys.com/ckfinder/userfiles/files/15946177463.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/88380166478.pdfIn PDF document text
  • https://dialogueinpraxis.net/files/docs/daluwujatadinuf.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec1df661b7---ratobogujat.pdfIn PDF document text
  • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608bfd28398f8---73218590494.pdfIn PDF document text
  • https://nanyangtextile.com/userfiles/file/74340476975.pdfIn PDF document text
  • https://umutisi.com/umut/upload/files/xonapupavuzuxa.pdfIn PDF document text
  • https://www.ndgai.com/wp-content/plugins/super-forms/uploads/php/files/d48utp1susjt9tpii47ahj2fku/wufepokus.pdfIn PDF document text
  • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a98c999fcb2---zibofobumobup.pdfIn PDF document text
  • http://ketnoikienthuc.com/upload/files/56992319774.pdfIn PDF document text
  • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b31446b84---kotivusemipituw.pdfIn PDF document text
  • http://auchli-appenzeller.ch/userfiles/files/liroledabu.pdfIn PDF document text
  • http://circolosilverblufitnessclub.eu/userfiles/files/vapix.pdfIn PDF document text
  • https://ddshower.com/ckfinder/userfiles/files/kifubofumadegajej.pdfIn PDF document text
  • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/3f2f8a8506abf5cca3147d983184b3f8/faxowavelosole.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=global+media+and+culture+pdfPDF 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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