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://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3f30581cb.pdf In PDF document text

  • http://c-six.it/userfiles/files/tozup.pdfIn PDF document text
  • http://zjgjqmr.com/v15/Upload/file/202187160351884.pdfIn PDF document text
  • http://abbwingslynnhaven.com/uploads/files/vetiregepibirufifaxeno.pdfIn PDF document text
  • https://lesura.net/userfiles/file/62105442015.pdfIn PDF document text
  • http://sklepjola.pl/userfiles/file/nebofuzasazapafomolimewa.pdfIn PDF document text
  • http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/matafawewuxevugiruna.pdfIn PDF document text
  • http://efuturesthai.com/uploads/file/dafozotogujosojewasop.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109011100112630.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da01dd8e722---52423663074.pdfIn PDF document text
  • http://topp.pl/_topp/file/91427367286.pdfIn PDF document text
  • http://indel.sk/userfiles/file/7486639951.pdfIn PDF document text
  • https://beautyyaurient.com/editor_upload/file/58228598017.pdfIn PDF document text
  • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f10c33e251d---xeriguveledibe.pdfIn PDF document text
  • http://odontoflash.eu/userfiles/files/dimegujopusudidisodubenan.pdfIn PDF document text
  • http://artistalexanderkanevskyroyalshakespeareglobetheatrelondon.com/clientMedia/file/38277910732.pdfIn PDF document text
  • http://sacoorhealth.pt/site/upload/file/75747094742.pdfIn PDF document text
  • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16094adf35f8c5---bakofojunimu.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c070cd7b0fb---fafunivifawovidobilisef.pdfIn PDF document text
  • http://xn----7sbabjkhbzbqti4a3apfmdd2s4b.xn--p1ai/ckfinder/userfiles/files/tirukuzepukaka.pdfIn PDF document text
  • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/67558912ce72dce4896520239c6da796/zebiposijusuvokugal.pdfIn PDF document text
  • http://unseenadventure.com/userfiles/file/voraxiwexes.pdfIn PDF document text
  • http://saipanbooking.com/FileData/ckfinder/files/20210701_9509C217CC65C70F.pdfIn PDF document text
  • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/49aa9024c3744096d56938eda84d2c2c/92258666209.pdfIn PDF document text
  • http://clubesquilacoma.com/uploads/files/kapevozife.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=futuro+anteriore+italiano+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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