Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://allytemp.ru/uplcv?utm_term=find+focus+and+directrix+of+parabola+worksheet PDF link annotation

  • http://www.jindatunnel.com/up_files/file/78685203697.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f8d208b420---88078379308.pdfIn PDF document text
  • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/2c6890ea6d22d5033980d05739943bc2/82290397489.pdfIn PDF document text
  • https://mabuksusu.com/contents//files/99580240945.pdfIn PDF document text
  • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/3a52c351b820251560b68d8e6840e42f/xuvovuxozeviz.pdfIn PDF document text
  • http://fobosgrunt.ru/files/ckfinder/files/2532905956.pdfIn PDF document text
  • https://amrapalispot.com/userfiles/file/852323905.pdfIn PDF document text
  • https://btegypt.com/file/95359981013.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/07d43tmekjjee58jnnaaacq266/vutode.pdfIn PDF document text
  • http://alconsprom.ru/ckfinder/userfiles/files/95067734912.pdfIn PDF document text
  • https://armagedonspedycja.pl/files/file/giwudatesal.pdfIn PDF document text
  • https://ewastexperts.com/userfiles/files/20997080424.pdfIn PDF document text
  • http://tebsc.com/clients/84181/File/lulobugotif.pdfIn PDF document text
  • http://cisseo.net/userfiles/files/wazutujivirawubesuxoja.pdfIn PDF document text
  • http://christmaslandint.com/userfiles/tutaponen.pdfIn PDF document text
  • http://www.ernakulamarchdiocese.org/www/js/ckfinder/userfiles/files/jidigisedevidinavikukur.pdfIn PDF document text
  • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/13691044312.pdfIn PDF document text
  • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160fb9cc40e009---veriwixalugomuveb.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/82512059470.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/pkr95ajrtaihpiq36q7bf9c876/74241051626.pdfIn PDF document text
  • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077afc64021a---73022798291.pdfIn PDF document text
  • http://aptekainternetowa.net/_mdm_apteki/file/foniwekivezarobisa.pdfIn PDF document text
  • https://keongracun.org/contents/files/23462121460.pdfIn PDF document text
  • https://pensiuneavalentina.ro/app/webroot/file/wetumonisaw.pdfIn PDF document text
  • http://aunay-sous-auneau.fr/ckfinder/userfiles/files/41605030438.pdfIn PDF document text
  • 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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