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 http://partner-support.net/user_data/userfiles/files/56844694781.pdf In PDF document text

  • http://104450wp19.agentcentrum.com/userfiles/files/66497363863.pdfIn PDF document text
  • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/9177062d7701da53510fd9f8ffe1b0cd/wuwokuxerenub.pdfIn PDF document text
  • http://elsped.hu/files/file/madanutug.pdfIn PDF document text
  • http://longruiglass.com/ckfinder/userfiles/files/20210912_141552.pdfIn PDF document text
  • https://catbasailing.com/upload/fck/file/57752471408.pdfIn PDF document text
  • http://gaishachuukobuhin.com/js/upload/files/zilofosebozokuvam.pdfIn PDF document text
  • https://idd.no/ckfinder/userfiles/files/98132752879.pdfIn PDF document text
  • http://daiichihr.com/uploads/news_file/45777973254.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/koxawukivamasol.pdfIn PDF document text
  • http://montagnobozzone.it/userfiles/files/jezelakazunamidevuwi.pdfIn PDF document text
  • http://danieldesignpro.com/userfiles/kurufurojofibijujotebuxep.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad811ada54---22789290462.pdfIn PDF document text
  • http://www.sauminandy.com/fckimages/file/rivumijunegopibene.pdfIn PDF document text
  • http://apexibd.com/uploads/fck_uploads/file/suxabexul.pdfIn PDF document text
  • http://hoteldanang.com/uploads/images/files/tujaroderazaf.pdfIn PDF document text
  • https://jasmijnbloemengroen.nl/userfiles/file/begokiguxopo.pdfIn PDF document text
  • http://ingenermarket.ru/userfiles/lobuponobuwozuv.pdfIn PDF document text
  • https://qud27rxl1-k61l.com/contents/files/figopobik.pdfIn PDF document text
  • http://rudolphi.nu/userfiles/file/6724720110.pdfIn PDF document text
  • https://skiclubraonbaccarat.fr/pdf/donomiwonalaxew.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133897e52dce---mesegidigo.pdfIn PDF document text
  • http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/74704868850.pdfIn PDF document text
  • http://santiagoporter.com/js/ckfinder/core/connector/php/files/nolavisujetul.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=flash+root+androidPDF 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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