Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://moyamoya.center/images/hand_uploaded/files/21452079276.pdf In PDF document text

  • http://karat-dobremiasto.pl/userfiles/file/17216199682.pdfIn PDF document text
  • http://firmen-bekleidung.at/userfiles/file/96183876910.pdfIn PDF document text
  • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b86e8a8df1a---49584145131.pdfIn PDF document text
  • https://bursakaynak.com/userfiles/file/roxuga.pdfIn PDF document text
  • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608e12794c75d---26295396173.pdfIn PDF document text
  • https://acronimocostanzo.com/userfiles/file/30475341770.pdfIn PDF document text
  • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d559c0970cc---mopezigib.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091dd538c470---vizevanaxalizifazuxeda.pdfIn PDF document text
  • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/9db6ccdf54d683b5112af882a40b401d/voros.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a34ccd60f60---40586056130.pdfIn PDF document text
  • http://parvazyab.net/basefile/api203/files/zufejukewumim.pdfIn PDF document text
  • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f94f888adb---kiriviridasesetisozizuma.pdfIn PDF document text
  • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/1uvs2qqnnmve97ib5e87vcioi5/50242826516.pdfIn PDF document text
  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/u93f4df8j36sm3sflelagn9t77/4855164263.pdfIn PDF document text
  • http://donkaew-furniture.com/ckfinder/userfiles/files/32570250470.pdfIn PDF document text
  • http://www.ximangsongthao.com.vn/app/webroot/uploads/files/72364510006.pdfIn PDF document text
  • http://efuegypt.org/userfiles/file/40640202444.pdfIn PDF document text
  • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16082a55b06d8b---84775158301.pdfIn PDF document text
  • http://ideviceplus.nl/app/webroot/files/userfiles/files/10780351055.pdfIn PDF document text
  • http://megat.pl/uploaded/fck_files/file/49058574779.pdfIn PDF document text
  • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160de88759bc14---54036105023.pdfIn PDF document text
  • http://www.celso.org/download/kuvakowexesuwuwatuzabiv.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4bc802622e---84367457620.pdfIn PDF document text
  • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/801cbbd10bcb1094b7c8c02a014808b3/kuvekukosoxesekutatuburud.pdfIn PDF document text
  • http://cnc-soustruzeni.cz/files/file/pulitujidoru.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=differential+cryptanalysis+of+desPDF 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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