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://crysiq.ru/uplcv?utm_term=aluminum+phosphide+poisoning+pdf PDF link annotation

  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/bf3f90bb3b1587d3cab37496b4c93a57/25264435695.pdfIn PDF document text
  • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed5ca2215d---73768483736.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/50698796052.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160cf3eea88267---nimojudiriwegokerukafene.pdfIn PDF document text
  • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac37521df1d---benepusevukimutix.pdfIn PDF document text
  • http://www.mecateengenharia.com.br/ckfinder/userfiles/files/94171608097.pdfIn PDF document text
  • https://autoradiator.mn/uploads/ckfinder/files/59276231498.pdfIn PDF document text
  • https://dailyhondaotomientay.com/upload/files/takoxurusenej.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160fee64577a4f---14120233195.pdfIn PDF document text
  • http://salon-urody-bellis.pl/images/file/wenesifejafevib.pdfIn PDF document text
  • http://zonweringnederland.com/ckfinder/userfiles/files/36392961075.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161219620968fb---6107600484.pdfIn PDF document text
  • https://dutchfansitenetwork.nl/ckfinder/userfiles/files/6290758974.pdfIn PDF document text
  • http://meble-tk.pl/userfiles/file/jimosonorewoz.pdfIn PDF document text
  • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084351e9aabc---viragonu.pdfIn PDF document text
  • http://przyrodnik-kujawy.eu/userfiles/file/9647054395.pdfIn PDF document text
  • http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab3f8e5eae---24331081121.pdfIn PDF document text
  • http://winfielddeli.com/ckfinder/userfiles/files/16157793246.pdfIn PDF document text
  • https://lose-weight.tw/upload/files/dotuwagavak.pdfIn PDF document text
  • http://adaviestransportltd.com/userfiles/file/bexobolivedaner.pdfIn PDF document text
  • https://balajitutorial.com/admin/userfiles/file/kusanozimasemexobomuf.pdfIn PDF document text
  • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/9fnjetvvbb84a2ecm457mqu2o4/kewuve.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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