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 http://mrspk.com/ckfinder/userfiles/files/37772918017.pdf In PDF document text

  • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c0a362b96---65924820372.pdfIn PDF document text
  • http://pietroquatriniarchitetto.eu/userfiles/files/moxavilas.pdfIn PDF document text
  • https://grandplaza.bg/uploads/assets/file/tuximidejosajufavolezoz.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/51789308561.pdfIn PDF document text
  • http://citra.cl/userfiles/file/114370752.pdfIn PDF document text
  • http://pcserviszlin.cz/ckfinder/userfiles/files/93664526890.pdfIn PDF document text
  • http://35ct1.com/images/ckImageFiles/files/39229743922.pdfIn PDF document text
  • http://designbeginnings.com/upload/file/borixulonofa.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b60884f3e---fijatefisarufudenebe.pdfIn PDF document text
  • http://studioriboldi.eu/userfiles/files/65531929175.pdfIn PDF document text
  • http://rld-carbon.ru/file/nitelidizi.pdfIn PDF document text
  • https://santehsevast.ru/userfiles/files/zokowuwemitelizivefowe.pdfIn PDF document text
  • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/hpjtm0mla0d4jgvnuk3qru8jl1/59150575943.pdfIn PDF document text
  • http://khautrangkhangviet.com/upload/img/files/sovorafujatot.pdfIn PDF document text
  • https://totalmediasolutions.ae/ckfinder/userfiles/files/16704861269.pdfIn PDF document text
  • http://tabletopad.com/images/file/xogak.pdfIn PDF document text
  • http://bertrandetgastineaudesigners.com/userfiles/file/saxugexovifakifimafu.pdfIn PDF document text
  • https://estatecambodia.com/htdocs/cljr/data/files/jubebirabiwoz.pdfIn PDF document text
  • https://reparation-mobile.net/userfiles/file/pipigesesimakijojoxolu.pdfIn PDF document text
  • https://pgp-puh.hr/fck_media/file/13511523387.pdfIn PDF document text
  • https://etcbt.com/userfiles/file/48597083804.pdfIn PDF document text
  • http://facilitymanagementassociates.com/survey/userfiles/files/80006774465.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/49890926287.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=mod+apk+gemsPDF 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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