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.
• JavaScript action low PDF_JAVASCRIPT
  PDF contains a /JavaScript action. 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://laborke.ru/uplcv?utm_term=what+are+the+top+5+largest+countries PDF link annotation

  • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea39b6f9cd---70135487972.pdfIn PDF document text
  • http://minhtoangalaxyhotel.vn/app/webroot/files/ckfinder/files/54183968483.pdfIn PDF document text
  • https://ra7a7p-h3ba7.com/contents/files/wudurujodesajokavuniraka.pdfIn PDF document text
  • https://sofupingame.com/calisma2/files/uploads/nowep.pdfIn PDF document text
  • https://tekartltd.com/upload/files/17676197141.pdfIn PDF document text
  • http://geredekombiservisi.com/userfiles/file/megeposibokik.pdfIn PDF document text
  • http://urparitet.ru/admin/ckfinder/userfiles/files/4999956340.pdfIn PDF document text
  • https://sudahhabis.com/contents/files/9179222832.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/17819544777.pdfIn PDF document text
  • http://guidesdugrandlarge.fr/images/import/file/xodufixexiruxowoditunu.pdfIn PDF document text
  • https://aynispirit.nl/userfiles/file/lezaxonuful.pdfIn PDF document text
  • http://predit.ru/admin/ckfinder/userfiles/files/75302882307.pdfIn PDF document text
  • http://3wsystems.com/shipinc/userfiles/files/xanazofuvebejexesegup.pdfIn PDF document text
  • http://qdjshg.com/files/file/72935157325.pdfIn PDF document text
  • https://zlatartopalovic.rs/files/40854192119.pdfIn PDF document text
  • http://ekogamma.pl/javascript/ckfinder/userfiles/files/pilovipokevizubajijilapaf.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/dbb3a74a5bafecde2ecd460193166029/73560408529.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161314588f0924---5656447693.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/milolagarasilonerusogawe.pdfIn PDF document text
  • http://zdrowejaja.com/Upload/file/99921003930.pdfIn PDF document text
  • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16131d43f07a3f---medowugidulexujefozuman.pdfIn PDF document text
  • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/4sd6qradglall56ju2m3fntkcm/peruxopet.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/8ejb5k1b150ecik5hjj9u0p296/24563196523.pdfIn PDF document text
  • http://enotecagaribaldi.it/userfiles/files/37174033228.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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