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
• Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
  PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
• 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://krisoc.ru/uplcv?utm_term=vb+net+on+android PDF link annotation

  • https://jairdefreitas.com/ckfinder/userfiles/files/rutusatigunan.pdfIn PDF document text
  • http://koddous.com/userfiles/file/8396789398.pdfIn PDF document text
  • http://longarmquiltingacadamy.com/fckeditor/userfiles/file/85974427254.pdfIn PDF document text
  • http://cncsprings.com/d/files/41266836711.pdfIn PDF document text
  • https://karpataljaturizmus.hu/upload/10848160126.pdfIn PDF document text
  • http://teleserviciomalaga.com/ckfinder/userfiles/files/xuloz.pdfIn PDF document text
  • http://teusz.pl/UserFiles/file/557605099.pdfIn PDF document text
  • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/5a70728dc1095c26c87c72f264132cae/4797738177.pdfIn PDF document text
  • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e4c08a35f6---4460731825.pdfIn PDF document text
  • http://acudrved.com/ckfinder/userfiles/files/89803749516.pdfIn PDF document text
  • http://vin-baietii.ro/ckfinder/userfiles/files/64986142653.pdfIn PDF document text
  • http://skupka54.ru/upload/m/93412887918.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/78ae084a5c2d7dd9e10087678ac1c6a5/52146689886.pdfIn PDF document text
  • http://kalkulacka-hypo.cz/userfiles/files/64534830153.pdfIn PDF document text
  • https://autoskola-scp.com/files/9666301185.pdfIn PDF document text
  • http://detskaoptika.cz/ckfinder/userfiles/files/bisowalo.pdfIn PDF document text
  • https://sanipro.ma/app/webroot/uploaderfiles/65036208420.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614906a07ee32---vutovodu.pdfIn PDF document text
  • http://prepearl.com/uploadsfile/xojoguguwogenivob.pdfIn PDF document text
  • http://www.azurwelcomeservices.com/userfiles/file/penojefivojotiraxire.pdfIn PDF document text
  • https://francoisdaulte.com/ckfinder/userfiles/files/72565441298.pdfIn PDF document text
  • http://banner-ever.com/ckImg/files/93167544080.pdfIn PDF document text
  • http://sfipl.in/userfiles/file/21970027352.pdfIn PDF document text
  • https://gdaniec.com/upload/files/bedutikenejegavuxok.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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