Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/uplcv?utm_term=environment+and+ecology+mcq+upsc+pdf PDF link annotation

  • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/c0cc33b151ba44b1b6acdfb249c3073d/divibusot.pdfIn PDF document text
  • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/14954953492.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102eee5ecb73---jivozasipapuremovitipivad.pdfIn PDF document text
  • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/rovalojobagupag.pdfIn PDF document text
  • https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16121c4ceef422---sesim.pdfIn PDF document text
  • http://peterpan1996.it/userfiles/files/13271348247.pdfIn PDF document text
  • https://bursakaynak.net/userfiles/file/mokubovawatadaf.pdfIn PDF document text
  • http://sakuragiramenandsushi.com/uploads/files/bolevepevirumaladiwazo.pdfIn PDF document text
  • http://polimak.pl/userfiles/file/71850431341.pdfIn PDF document text
  • http://inphilong.com/upload/files/95139456201.pdfIn PDF document text
  • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608deefe4d2af---77158112168.pdfIn PDF document text
  • http://jcbcharpentebois.com/ressource/site-image/files/19636666875.pdfIn PDF document text
  • https://vildmarksjagt.dk/userfiles/file/vokapogam.pdfIn PDF document text
  • http://oletrans.sk/editor_uploads/files/25175571003.pdfIn PDF document text
  • http://lorichphoto.com/pictures/file/60422768979.pdfIn PDF document text
  • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/67417888109.pdfIn PDF document text
  • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ae19cd2b5---nivikozurolosowibom.pdfIn PDF document text
  • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/412cvp7isvbqh37rnd80hue9gq/46045725975.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834a35787ba---34874136632.pdfIn PDF document text
  • http://woodwork.pl/ubezpiecz/obrazy/file/46543558243.pdfIn PDF document text
  • https://aplusadvance.com/naver_editor/data/file/kamipesujijatopib.pdfIn PDF document text
  • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/vco1es08velhohqj41mmuegn7n/32464533868.pdfIn PDF document text
  • http://cmtsport.com/pliki/makoto.pdfIn PDF document text
  • https://fnb-concepts.com/images/uploads/files/4741754723.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/aeffa053e86a84883c7ac0888e247a39/50956479194.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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