Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://asckhn.com/acskhn/userfiles/file/69428094578.pdf In PDF document text

  • http://eko-inwest.eu/upload/file/5477835405.pdfIn PDF document text
  • http://tiguan-wiki.ru/file/92960799163.pdfIn PDF document text
  • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613e370255419---53162615364.pdfIn PDF document text
  • https://sydneystudytour.com/accounting/userfiles/file/35633692057.pdfIn PDF document text
  • http://arabstina.com/ckfinder/userfiles/files/40058254721.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1614167b8e915a---77719691208.pdfIn PDF document text
  • http://bosch-elektronarzedzia.pl/catalog/file/14353460036.pdfIn PDF document text
  • https://arrad.ch/modules/ck/ckfinder/userfiles/files/36400785774.pdfIn PDF document text
  • https://homestayhoian.vn/uploads/image/files/finoxarufinawageragom.pdfIn PDF document text
  • http://krishikhabar.net/assets/ckfinder/core/connector/php/uploads/files/18451225485.pdfIn PDF document text
  • http://cdn.eagle.mn/uploads/userfiles/files/67526925432.pdfIn PDF document text
  • https://siltri.com/fck_upload/file/10116942204.pdfIn PDF document text
  • https://chetanaus.org/bheru/uploadfiles/file/vawopid.pdfIn PDF document text
  • http://www.beverburcht.nl/upload/files/64611415455.pdfIn PDF document text
  • https://titishop.co/upload/files/70143519498.pdfIn PDF document text
  • http://wagnerpc.com/userfiles/files/tozotojelekojijetajot.pdfIn PDF document text
  • http://kroonzuivel.nl/ckfinder/userfiles/files/vibekudapanetedukob.pdfIn PDF document text
  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613da8d886b37---kevogivitazorikiwulaxejol.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd7a3bbd98---86886481068.pdfIn PDF document text
  • http://www.lovebliss.tw/UserFiles/files/25733150183.pdfIn PDF document text
  • https://cokhivietuc.com/img-vietuc/files/42201960689.pdfIn PDF document text
  • https://codefon.hu/js/ckfinder/userfiles/files/fanidebidugubenisuxejulex.pdfIn PDF document text
  • http://chiangmaicharmingtravel.com/ckfinder/userfiles/files/45434421755.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/gogavuzogog.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=barbie+dream+house+game+apkPDF 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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