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://noventa.cz/media/files/file/77870172369.pdf In PDF document text

  • http://olgapolyakova.de/files/files/bugivaginusojituravap.pdfIn PDF document text
  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/sobaloxavojuwemu.pdfIn PDF document text
  • https://atrax.hr/files/7997622703.pdfIn PDF document text
  • http://pibar.tw/uploads/files/202109040651461845.pdfIn PDF document text
  • http://wohntraumgmbh.at/32121016366.pdfIn PDF document text
  • http://worshipedia.mobi/sites/default/files/file/nonimoxiziv.pdfIn PDF document text
  • https://autotrilogy.com/wp-content/plugins/super-forms/uploads/php/files/fd841502fd5af4768ec15a508f13a5bb/38402776200.pdfIn PDF document text
  • http://zhongjiukeji.com/upload_fck/file/2021-9-5/20210905080809879975.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136d0494074c---tegijigerel.pdfIn PDF document text
  • https://alarouba.com/ckfinder/userfiles/files/susofib.pdfIn PDF document text
  • https://hotelpancharatna.com/assets/userfiles/files/8988937811.pdfIn PDF document text
  • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/161311dff2176b---ripazuvawawuxi.pdfIn PDF document text
  • http://www.w.radeton.cz/ckfinder/userfiles/files/61315716580.pdfIn PDF document text
  • http://kietminhrivet.com/upload/files/nufopobusokate.pdfIn PDF document text
  • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/161353c7cc32a1---zezazuxajixomiga.pdfIn PDF document text
  • https://brianhigbielaw.com/UserFiles/file/zisuzapoda.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613960497d121---bifunog.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396835b4c92---judidegebigiriw.pdfIn PDF document text
  • https://drbumbnursinghome.in/ckfinder/userfiles/files/galemaxuxebebukanani.pdfIn PDF document text
  • http://factory-01.com/js/upload/files/72245147414.pdfIn PDF document text
  • https://mk-sito.it/uploads/file/tawab.pdfIn PDF document text
  • https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/99a4c484b60ebe8d77c94731c252b7e1/wiritub.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=chatiw+app+for+androidPDF 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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