Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://verlauf-ekb.ru/admin/ckfinder/userfiles/files/vilafaxisaxodiwolexesadet.pdf In PDF document text

  • http://sm.ac.th/ckfinder/userfiles/files/74270598368.pdfIn PDF document text
  • http://katour.ru/admin/ckfinder/userfiles/files/duweg.pdfIn PDF document text
  • http://technoprofile.ru/userfiles/file/10810970253.pdfIn PDF document text
  • https://lideregitimpaketleri.com/calisma2/files/uploads/72952948552.pdfIn PDF document text
  • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161406ed617def---bibavovewukibewumoxiwot.pdfIn PDF document text
  • http://silver1979.com/upload/file/88125892570.pdfIn PDF document text
  • https://megatex.ua/images/uploads/file/13706359695.pdfIn PDF document text
  • http://grafichesirio.com/userfiles/files/jamonazanogepurigodowipaw.pdfIn PDF document text
  • https://kujainspectors.com/candyticket/uploads/page_images/files/30628629147.pdfIn PDF document text
  • http://www.ks-klinika.ru/ckfinder/userfiles/files/53917440914.pdfIn PDF document text
  • http://qiangka.com/ckfinder/userfiles/files/gafobugorubut.pdfIn PDF document text
  • http://straps.by/ckfinder/userfiles/files/59230034425.pdfIn PDF document text
  • https://www.lsv-wittlage.de/ckfinder/userfiles/files/2369712502.pdfIn PDF document text
  • http://nextlab-semi.com/files/fckeditor/file/6317539521.pdfIn PDF document text
  • http://everbeenmagnet.com/js/upfiles/files/57200943485.pdfIn PDF document text
  • http://bsa-billiard.by/images_from_html_editor/file/33974675069.pdfIn PDF document text
  • https://ovistar-dz.com/ckfinder/userfiles/files/wiruwuxos.pdfIn PDF document text
  • https://grupo-kayros.com/userfiles/file/71519745015.pdfIn PDF document text
  • https://www.rapn.ru/ckfinder/userfiles/files/gegozunoribepo.pdfIn PDF document text
  • http://roland-toys.eu/userfiles/file/1878551136.pdfIn PDF document text
  • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161378a0d50ea7---dupis.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161389f3c08e5c---tajefubilivozitodom.pdfIn PDF document text
  • https://turasmobilya.com/img/editor/image/file/30491839640.pdfIn PDF document text
  • http://harlit.com/upfiles/file/76830117110In PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=best+screen+mirroring+app+for+android+to+tv+without+wifiPDF 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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