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://irlanc.ru/uplcv?utm_term=hp+probook+440+g4+notebook+pc+service+manual PDF link annotation

  • http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fijisenosagogunotero.pdfIn PDF document text
  • https://pet-fashion.ro/mm/file/34198705612.pdfIn PDF document text
  • https://bookatowncar.com/userfiles/file/75075114198.pdfIn PDF document text
  • http://flexa.cz/docs/file/24201962171.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612397a18c3e4---37177930781.pdfIn PDF document text
  • http://ekorepetycje.eu/Upload/file/dokupasiwarewiz.pdfIn PDF document text
  • https://mygenius.ru/admin/ckfinder/userfiles/files/99467577073.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/eghrq4na05hkp47gp0fmchcon4/96786765219.pdfIn PDF document text
  • http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/9230195030.pdfIn PDF document text
  • http://zuche0551.com/upload/file/77029812241.pdfIn PDF document text
  • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/4a7f72bb82437e945aa28ebea47c4a2b/80538515434.pdfIn PDF document text
  • https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/321e9e7d1f4063301db21616a73ce92e/23260644484.pdfIn PDF document text
  • http://joyear.com/ckfinder/userfiles/files/ratofu.pdfIn PDF document text
  • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092a9a5a3ef3---jumivakijetevi.pdfIn PDF document text
  • http://circuitoinsulargc.com/documentos/file/fegodonaro.pdfIn PDF document text
  • http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/bdb5394e28c9ad007cfb25258eed8272/11188692834.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ni3pr57kf1mg9oar0d5agi2ne0/wuravumunusuzutukudewos.pdfIn PDF document text
  • http://autoklej.pl/app/webroot/media/files/lilipozoxugulokolubepovam.pdfIn PDF document text
  • http://muszempilla.com/files/file/39320324363.pdfIn PDF document text
  • https://sabunwangi.com/contents//files/runanusanapebotiwo.pdfIn PDF document text
  • http://www.psyforyou.nl/upload/fckeditor/file/vufelutiwalebabezukuluz.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087df2691e5f---1985144458.pdfIn PDF document text
  • https://vettercycles.ch/userfiles/files/sijuwizepegoxexazi.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/17087180990.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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