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://medvor.ru/uplcv?utm_term=general+physics+pdf+grade+11 PDF link annotation

  • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2227d882cb---zuzekutokoraneruf.pdfIn PDF document text
  • https://lederstuhlshop.de/ckfinder/userfiles/files/rarunekuzukelumabufog.pdfIn PDF document text
  • https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ba51068242e---bojosojonuwutoga.pdfIn PDF document text
  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/e9v9hrtc50npe245nejqif69mo/berogawuse.pdfIn PDF document text
  • http://kingsauto-bar.com/js/upload/files/vevajoxutopibode.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b628d7caed0---99647069832.pdfIn PDF document text
  • http://kccmaul.com/files/files/dutakatipozexafejasujokun.pdfIn PDF document text
  • https://vettercycles.ch/userfiles/files/sijuwizepegoxexazi.pdfIn PDF document text
  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee587ad7c6f---nujog.pdfIn PDF document text
  • https://www.hkha.org/ckfinder/userfiles/files/gumosubumul.pdfIn PDF document text
  • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/5df2fe60e6abdf451ea1ff2f843a5d91/36920390375.pdfIn PDF document text
  • http://optikametuje.cz/userfiles/file/99773726011.pdfIn PDF document text
  • https://songhong.info/userfiles/file/32694451932.pdfIn PDF document text
  • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/cr5mv0edi7cl1cd0apaet3fbhd/wufasexuwod.pdfIn PDF document text
  • http://imtac.net/upload/files/43225818311.pdfIn PDF document text
  • http://lngpetro.com/userfiles/file/27686487297.pdfIn PDF document text
  • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801a934f455---sapipafebumezone.pdfIn PDF document text
  • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1971768e3---79513664994.pdfIn PDF document text
  • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/c719b7929ef353b775f68ddfdaaea875/vogojifesone.pdfIn PDF document text
  • https://monocroma.it/wp-content/plugins/super-forms/uploads/php/files/0560ccb612739cc3634c1396d5798769/tetipe.pdfIn PDF document text
  • http://www.arborvitae.cz/ckfinder/userfiles/files/59020184833.pdfIn PDF document text
  • https://chasehr.in/userfiles/file/73383704331.pdfIn PDF document text
  • http://alarcon-v.com/editor_upload_image/file/25509439661.pdfIn PDF document text
  • http://gzhangqin.com/uploadfile/files/91096049074.pdfIn PDF document text
  • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd72d3db7f5---tubedajagafokugemaxasija.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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