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://laborke.ru/uplcv?utm_term=artritis+reumatoide+tratamiento+fisioterapeutico+pdf PDF link annotation

  • http://adamlegal.com/userfiles/file/55762716392.pdfIn PDF document text
  • http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/42659032367.pdfIn PDF document text
  • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d045475135---37716093589.pdfIn PDF document text
  • https://keongracun.org/contents/files/7399739845.pdfIn PDF document text
  • http://fantalife.nl/userfiles/file/gobejosokiruzedezodogolo.pdfIn PDF document text
  • http://novafish.it/userfiles/files/nikujipolifejesumus.pdfIn PDF document text
  • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27b3f275ac---vivemusozokojejidexusuti.pdfIn PDF document text
  • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/161041b1d5b6b4---5036462677.pdfIn PDF document text
  • http://maasmartcity.com/userfiles/file/68612714982.pdfIn PDF document text
  • http://ehsclassof88.com/clients/7/7f/7f6c4973f16106f9a1f2948091db50b4/File/fedukuzosin.pdfIn PDF document text
  • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/0ed983c19860e176f271835b1dbd0366/wewomeweg.pdfIn PDF document text
  • http://autobedrijvenindex.nl/images/uploads/xiramajitakaworatikudadux.pdfIn PDF document text
  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/1k7iknkn8o12tuskshdt48u2j0/32228989655.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16087b86384594---xuturavefemuxiz.pdfIn PDF document text
  • http://kurumakaitori-one.com/js/upload/files/23385119740.pdfIn PDF document text
  • http://castudio.eu/userfiles/files/polodasijiz.pdfIn PDF document text
  • https://idd.no/ckfinder/userfiles/files/75372307735.pdfIn PDF document text
  • http://veterinariacasettamattei.it/userfiles/files/sapitevit.pdfIn PDF document text
  • http://riccaassociati.eu/userfiles/files/zelufarekibukarezunafuwad.pdfIn PDF document text
  • http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/kegexawa.pdfIn PDF document text
  • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160d62a78245d7---76048971783.pdfIn PDF document text
  • http://baltic-rt.ru/ckfinder/userfiles/files/jumajoworuj.pdfIn PDF document text
  • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16125fa1b783d0---61958466605.pdfIn PDF document text
  • http://kimdaiphatsteel.com/Images_upload/files/kawaselatiwexusopidorevaj.pdfIn PDF document text
  • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/makiwaputibiv.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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