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 http://chuaphucluong.com/uploads/image/files/wisup.pdf In PDF document text

  • http://kingsauto-bar.com/js/upload/files/80190613863.pdfIn PDF document text
  • https://thailonghoang.vn/upload/files/japedozemebazuwedu.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077118ac5967---57839106859.pdfIn PDF document text
  • http://trustycctv.com/ckfinder/userfiles/files/ruzelozuzodova.pdfIn PDF document text
  • http://cukiernia-waltar.pl/qcms/userfiles/file/rexukemimu.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5c91e1e9a---88788445234.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/r96j2an5pnh25mp646d3c2h95f/fupefemululireto.pdfIn PDF document text
  • http://xinyuemu.net/assets/202108/files/20210814055119579355.pdfIn PDF document text
  • http://gtshotel.it/images/file/15470447349.pdfIn PDF document text
  • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160ab790c6f32d---20069625228.pdfIn PDF document text
  • http://savvyais.com/userfiles/file/19204538259.pdfIn PDF document text
  • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/c82loc5mp9d0q0d7assav4vdom/raduzopoxetikapavibiwidaz.pdfIn PDF document text
  • https://betenrealestate.com/sites/default/files/file/wafusudorafez.pdfIn PDF document text
  • http://yngc.ru/admin/ckfinder/userfiles/files/7345596169.pdfIn PDF document text
  • http://nowyhotelik.pl/userfiles/file/12459034858.pdfIn PDF document text
  • http://arniestribu.com/campannas/file/20041020279.pdfIn PDF document text
  • http://stauarchitetti.eu/userfiles/files/80545017378.pdfIn PDF document text
  • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/m82ed5jhkoqq953odchdjjm9re/fazonoposisobujiriviz.pdfIn PDF document text
  • http://lucann.com/Upload/file/tijikirevojonunaxuweloxok.pdfIn PDF document text
  • http://bortran.com/upload/image/file/20210725071449.pdfIn PDF document text
  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/nb184rsvs9v2lirebgf9bjo4eb/92926968289.pdfIn PDF document text
  • http://cistenivytahu.cz/upload/file/63729597403.pdfIn PDF document text
  • http://starsunited.at/upload/files/42089612897.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=gas+assisted+injection+molding+machine+manufacturersPDF 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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