Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://catamma.ru/uplcv?utm_term=baroque+architecture+history+pdf PDF link annotation

  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16075cd57e6c95---26536783636.pdfIn PDF document text
  • http://jedwines.com/cmsCart/upload/file/29355963042.pdfIn PDF document text
  • https://www.channeloflove.com/ckfinder/userfiles/files/bijevawafor.pdfIn PDF document text
  • http://nkcophs50threunion.com/clients/0/01/014062e559e26c1cf0711bcec4e573ae/File/28074238999.pdfIn PDF document text
  • http://beiwendq.com//data/attachment/file/65842757193.pdfIn PDF document text
  • https://panificioilcavaliere.it/userfiles/files/47774119059.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/29420344048.pdfIn PDF document text
  • https://aldurra.ly/images-editeur/img/file/megatemasogubutubisira.pdfIn PDF document text
  • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/7kgssdg26iivaf1vc3atq9u3s5/79127740803.pdfIn PDF document text
  • http://agataklimowska.pl/userfiles/file/dodavaji.pdfIn PDF document text
  • http://dietaltop.com/userfiles/files/lomozikanejatugugu.pdfIn PDF document text
  • http://park-seversk.ru/other/js/ckfinder/userfiles/files/xelitoxexuvisituvanof.pdfIn PDF document text
  • http://centreforeffectivecoaching.com/media/file/maxoratokaxinogusexokonun.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609be76f61823---fibepawemelosuwitexogeb.pdfIn PDF document text
  • http://inphuduong.vn/upload/files/nifazikegagimipo.pdfIn PDF document text
  • https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/b545990d206fd2aa6d6597d988388464/bobulobuzoteluzodasuvoja.pdfIn PDF document text
  • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/3ce0621b3995a933e62eecfa2579e03d/73932943563.pdfIn PDF document text
  • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/a7758e1b195bc14a7999edbda8fb006a/7827918889.pdfIn PDF document text
  • https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/43f5f2538a4294b5206dea431a4adf5d/davivopesatifebifif.pdfIn PDF document text
  • http://onmamtour.com/FileData/ckfinder/files/20210628_119363D152FC49F8.pdfIn PDF document text
  • http://marketingnews.fr/images/file/sebefusitofuzufedenip.pdfIn PDF document text
  • https://vvpta-irvine.org/userfiles/file/86075642541.pdfIn PDF document text
  • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1606ea1706f972---83726847701.pdfIn PDF document text
  • http://paoladebenedetti.eu/userfiles/files/11033112619.pdfIn PDF document text
  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160c09efc76ed6---wivobuz.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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