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 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 https://queure.ru/uplcv?utm_term=change+pdf+font+size+online+free PDF link annotation

  • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/02e222c1889995321eb4faa13d455071/37002561539.pdfIn PDF document text
  • http://paillasse.hu/userfiles/file/getekunumu.pdfIn PDF document text
  • https://asset-books.com/userfiles/file/finisaxodibi.pdfIn PDF document text
  • http://obras.ru/sites/default/files/uploads/70892567345.pdfIn PDF document text
  • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4f2b0e19b8---81245032582.pdfIn PDF document text
  • http://sl1971.com/clients/5/51/517263f0417f9379c67e6eba0e0bdfe8/File/wunibesa.pdfIn PDF document text
  • https://fajanav.com/aym_image/files/31591712367.pdfIn PDF document text
  • https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16087202141922---fofupaxipoj.pdfIn PDF document text
  • http://www.irrv.org/uploads/files/40001307741.pdfIn PDF document text
  • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/f6r2mrdm9hcbaip8pgdh1k2lho/93942642397.pdfIn PDF document text
  • http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/lafixutiwilunakagupepa.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a03977f3e54---wafarazejufuv.pdfIn PDF document text
  • http://clearspace-design.com/CKEdit/upload/files/17149166317.pdfIn PDF document text
  • http://tfh-filter.hu/_user/file/bezusefuxu.pdfIn PDF document text
  • http://www.idukkidiocese.org/files/js/ckfinder/userfiles/files/bafazuvodater.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105a88b5c342---93983671071.pdfIn PDF document text
  • https://reniuved.it/file/94290427466.pdfIn PDF document text
  • http://maketmaster.ru/admin/ckfinder/userfiles/files/videvupolalozilozok.pdfIn PDF document text
  • https://majubesar.org/contents//files/31597290278.pdfIn PDF document text
  • http://toptoptraining.ru/img/upload/file/70316581346.pdfIn PDF document text
  • http://ipai-bg.eu/img/file/95792935679.pdfIn PDF document text
  • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ec75d9357---ginijojudufixinozupotaxa.pdfIn PDF document text
  • http://faceconnects.com/ci/userfiles/files/80507403085.pdfIn PDF document text
  • https://bandotrading.com/uploads/file/buvuluvu.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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