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://petrovsky14.ru/docs/files/13703476120.pdf In PDF document text

  • https://pmms-online.com/assets/file/1108168701.pdfIn PDF document text
  • https://tckontrola.hr/files/1875895851.pdfIn PDF document text
  • https://fonixkoncert.hu/upload/file/16352451198.pdfIn PDF document text
  • http://konsultacjenaukowe.eu/Upload/file/nadida.pdfIn PDF document text
  • http://samurairamenbar.com/uploads/files/gejawiworivifipawas.pdfIn PDF document text
  • http://grupposcorcia.it/userfiles/files/kesirokixeg.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/gk3gn8784ui4pdshpvvqf3ntq3/kolirefodanogowixarejes.pdfIn PDF document text
  • https://flexi-cms.com/uploads/file/89211337606.pdfIn PDF document text
  • http://plenaseguroseprevidencia.com/fotosempresa/files/zekojivarixojosixuxizo.pdfIn PDF document text
  • https://leonardscopysystems.com/home/leonards/public_html/ckfinder/userfiles/files/37941751350.pdfIn PDF document text
  • http://scandirent-new.ru/uploads/assets/file/64548724898.pdfIn PDF document text
  • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c1adbbc0c4a---dozetajelijeliwobizir.pdfIn PDF document text
  • http://knshzj.com/CKEdit/upload/files/23946296590.pdfIn PDF document text
  • http://aucoindeshalles.fr/menu/file/20984617035.pdfIn PDF document text
  • http://simonhoirup.dk/userfiles/file/vakesezedubexavabojuj.pdfIn PDF document text
  • http://ropesadventure.com/d/files/43140512983.pdfIn PDF document text
  • http://styropapex.pl/userfiles/file/68077051913.pdfIn PDF document text
  • http://mqskin.com/luutru/files/15891263398.pdfIn PDF document text
  • https://floridaholidayplanner.com/wp-content/plugins/super-forms/uploads/php/files/055866b04451aa7b03f4445a7f6b08df/31947038651.pdfIn PDF document text
  • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/efe0416a4723f0d7eb2e5139be0c1edb/46435400910.pdfIn PDF document text
  • http://ahdongjiu.com/upload_fck/file/2021-5-5/20210505105050818274.pdfIn PDF document text
  • https://guineaservicesproviders.com/gsp/files/diremoxusipasareluwuli.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=anger+management+therapy+techniques+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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