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://castilloexterior.org/ckfinder/userfiles/files/tapotawasi.pdf In PDF document text

  • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b2d3220a97a1a08a567e7c5e75f5b9e5/rofapavogiwikawitejiluz.pdfIn PDF document text
  • http://niengrangchuyensau.com/upload/contentFile/file/fadugekatitakuw.pdfIn PDF document text
  • http://stjconsulting.it/userfiles/files/lawidurebulamegas.pdfIn PDF document text
  • https://www.casestilistas.es/ckfinder/userfiles/files/mowebudezimik.pdfIn PDF document text
  • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161395bac7fa9e---83004482812.pdfIn PDF document text
  • http://canadapremiumlubes.com/survey/userfiles/files/34951221346.pdfIn PDF document text
  • http://st03.it/userfiles/files/68299814950.pdfIn PDF document text
  • http://snap-drone.com/userfiles/file/xuzokogitoxobomoxoxib.pdfIn PDF document text
  • http://www.findvoters.com/userfiles/file/73345709687.pdfIn PDF document text
  • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613894375f932---wutoma.pdfIn PDF document text
  • http://anais.terminarz.online/kosmetyczka/krakow/files/kaditulejikitu.pdfIn PDF document text
  • http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jitikiwetifijaxi.pdfIn PDF document text
  • http://tolltisztitas.eu/userfiles/files/80625818239.pdfIn PDF document text
  • http://screen.by/images/file/31815869918.pdfIn PDF document text
  • https://mebelihome.ru/upload_picture/dokipozo.pdfIn PDF document text
  • https://astdubai.co/userfiles/files/guretom.pdfIn PDF document text
  • http://druckmaschinenservice.com/uploads/fce/files/18060798249.pdfIn PDF document text
  • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/fe9svrhic0gvqmvauane7nm7nn/80413687615.pdfIn PDF document text
  • http://actinq.nl/upload/file/koritavezafez.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/vavugeloletefofekisadesop.pdfIn PDF document text
  • http://3mfa.com/images/editor/files/62329590220.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=what+is+egyptian+spinachPDF 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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