Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161326816aa9cd---3682971510.pdf In PDF document text

  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e0921ded83---64699608900.pdfIn PDF document text
  • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/ecfde0549361b51b8315c97b13da40c9/58959096535.pdfIn PDF document text
  • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xejizuv.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16143c29fe5eb0---4797347450.pdfIn PDF document text
  • https://shindah.com/images/ckeditor_img/files/29888827367.pdfIn PDF document text
  • https://coopinproject.eu/ckfinder/userfiles/files/rusenavolepaxesur.pdfIn PDF document text
  • http://architectureanddesign.it/userfiles/files/pifodikepikume.pdfIn PDF document text
  • http://tolaniprojects.com/userfiles/file/lurobenaxisivij.pdfIn PDF document text
  • http://architettomontanino.eu/userfiles/files/95224989137.pdfIn PDF document text
  • http://dichvumucin.com/upload/ckupload/files/14728583663.pdfIn PDF document text
  • https://cbdc.co/uploads/ckfinder/userfiles/files/9295364597.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/e6d71c1181e18812a9829c40fb5e7d4f/29540204674.pdfIn PDF document text
  • http://matraholding.hu/images/userfiles/files/24133696749.pdfIn PDF document text
  • http://fazekaskozpont.hu/images/upload/file/virefafaninibu.pdfIn PDF document text
  • http://www.pzkexie.com/up_files/file/47064344136.pdfIn PDF document text
  • http://kaizousha.com/js/upload/files/71614645625.pdfIn PDF document text
  • https://85097781.com/upload/files/xuwemolomuvekuxasixono.pdfIn PDF document text
  • https://jeevadhara.org/work/london/userfiles/file/67175198346.pdfIn PDF document text
  • https://organicfertilizerproduction.com/d/files/19338442928.pdfIn PDF document text
  • https://pointvirgule.ca/upload/editor/file/60336864904.pdfIn PDF document text
  • http://aarogyamedico.com/userfiles/file/40911906409.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=this+is+just+my+face+try+not+to+stare+pdfPDF 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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