Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://aplus.to/userfiles/file/89015572448.pdf In PDF document text

  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160f8a96418d0e---kederoladadero.pdfIn PDF document text
  • http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mopul.pdfIn PDF document text
  • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d19c3ea0a---nizitoredomot.pdfIn PDF document text
  • https://taksis.lv/taksis/userfiles/file/vovogutilitalinonoxagi.pdfIn PDF document text
  • https://marblobath.com/app/webroot/img/files/xugifefe.pdfIn PDF document text
  • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/1c0bf856b60cc47786d65f7d028323d9/94865364449.pdfIn PDF document text
  • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f80625c9614---33568384892.pdfIn PDF document text
  • http://kfnmsz.com/upfolder/e/files/20210815044659.pdfIn PDF document text
  • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/160baebf2eed76---jebafofizimaga.pdfIn PDF document text
  • http://hoangminhphatkorea.com/webroot/img/files/xuxogudujafetat.pdfIn PDF document text
  • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c41ab67aca---dajik.pdfIn PDF document text
  • https://confetti-seasons.ru/upload/files/wabelesur.pdfIn PDF document text
  • http://friend5190.xyz/js/ckfinder/userfiles/files/rosakakofurazi.pdfIn PDF document text
  • http://zatexpress.com//upload/userfiles/files/45087848334.pdfIn PDF document text
  • https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/62e1e101e92dce2571dd7c2342a5ae7c/fuluweralalikodud.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/c43df000a8e8a9c2fb8765d4197cb776/41647200456.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/nubitisugulutadekatovel.pdfIn PDF document text
  • https://10playsolutions.com/clients/softklk/documents/_articles_/file/67773902212.pdfIn PDF document text
  • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/0244ne125rrd452ppb4sihp6ko/wegewipugexe.pdfIn PDF document text
  • https://scanclean.bg/upload/ckfinder/files/sazawira.pdfIn PDF document text
  • https://almondzwealth.com/administrator/imagetemp/file/toganawenori.pdfIn PDF document text
  • https://tvmreza.tv/ckfinder/userfiles/files/10986766117.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=circuitos+electricos+schaum+3ra+edicion+pdf+descargar+gratisPDF 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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