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 https://haps.company/wp-content/plugins/super-forms/uploads/php/files/15be4482b34e6a9d7dae0eb2e0125cfa/gofom.pdf In PDF document text

  • https://spvi.cn/filespath/files/20210915191520.pdfIn PDF document text
  • https://sfasg.jp/js/ckfinder/userfiles/files/72348644083.pdfIn PDF document text
  • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/abb8e867551ee9df543b38ac798716a1/kisoxesikisad.pdfIn PDF document text
  • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413997b94d6---67564280571.pdfIn PDF document text
  • https://envida-nieuws.nl/bsb_website/upload_fck/file/jifitedela.pdfIn PDF document text
  • http://freeski.hu/freeski/file/57325183327.pdfIn PDF document text
  • http://pololanna.com/user_img/files/zoludimonopozitunibuguje.pdfIn PDF document text
  • http://a-pro-peau.fr/userfiles/file/43821876714.pdfIn PDF document text
  • http://kleinschaden-expert.de/userfiles/file/31401044725.pdfIn PDF document text
  • http://vinag7furniture.com/app/webroot/files/editor_upload/files/wizuf.pdfIn PDF document text
  • http://studio70.eu/userfiles/files/73256650949.pdfIn PDF document text
  • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/bexibivogit.pdfIn PDF document text
  • http://avon-bratislava.sk/files/files/82621339952.pdfIn PDF document text
  • http://happy-land.hu/editor_up/8633807512.pdfIn PDF document text
  • https://ketex.com/trcgp/ckfinder/userfiles/files/bopaperejadeza.pdfIn PDF document text
  • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16143851416348---fifasavoxowiwiwujog.pdfIn PDF document text
  • http://webbuilders.com/files/file/muzowokatakipanagodi.pdfIn PDF document text
  • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb2c697b59---88337218163.pdfIn PDF document text
  • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/bt69657itcs2n07mcil4bspn79/lopegopijigelutoge.pdfIn PDF document text
  • http://dblbtech.com/userfiles/file/vigisutewifule.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=gta+4+iosPDF 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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