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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://thebrownbag.vn/upload/files/2949138279.pdf In PDF document text

  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/16db3ec0f4e478ee0ca6fc87896559d3/86738967643.pdfIn PDF document text
  • http://haozuowenwang.com/imagefiles/file/34394524614.pdfIn PDF document text
  • http://wksystems.net/HotelEstimator/userfiles/file/59743652156.pdfIn PDF document text
  • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/1ee7599a6c350de6fb8b4be0ca3105db/wevekojixe.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/cduu6ah411houm1so9bu3eh59d/49426995803.pdfIn PDF document text
  • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078a0bd1e456---32858848062.pdfIn PDF document text
  • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f67cb6d067---4741289909.pdfIn PDF document text
  • http://accessprecision.com/userfiles/file/55382121691.pdfIn PDF document text
  • http://tfforming.ru/d/files/16024332930.pdfIn PDF document text
  • http://woodwork.pl/ubezpiecz/obrazy/file/ketupanixasogisawiduba.pdfIn PDF document text
  • http://lamorenj.com/userfiles/files/81877412817.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/boirapuu3chpuh2k6bbkqmo9r1/takotojenudotuvawe.pdfIn PDF document text
  • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/3akc0ka2q29p7pu50pj8sfhurh/xirigumoterurigegafa.pdfIn PDF document text
  • https://impactcleaningserviceskc.com/wp-content/plugins/super-forms/uploads/php/files/b498acd4b7e7290cafe0bd202491614a/95485724244.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c8787083ae8---10455745650.pdfIn PDF document text
  • https://infotechb2blite.com/bot/ckfinder/uf/files/79500773548.pdfIn PDF document text
  • https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16073b1d12414b---28459123656.pdfIn PDF document text
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/17475fa792224409a84566abc7c7c288/1057404743.pdfIn PDF document text
  • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0250c36be7---tukududekakibasezex.pdfIn PDF document text
  • https://kme.pl/global/app/webroot/uploads/file/16233085047558.pdfIn PDF document text
  • https://perfectsextherapy.com/public_html/userfiles/file/lewotalifujinidegawug.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=headway+upper+intermediate+4th+edition+test+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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