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://huntic.ru/uplcv?utm_term=icd+10+low+platelet+count PDF link annotation

  • http://year-c.com/upload_fck/file/2021-9-26/20210926115006120497.pdfIn PDF document text
  • http://maaramachandifpo.com/admin/userfiles/file/fonitebatujolemek.pdfIn PDF document text
  • http://truhlarstvisollner.cz/data/file/wazido.pdfIn PDF document text
  • http://huarui-bio.com/upload/files/23653374925.pdfIn PDF document text
  • https://dreamscapes.ca/dream_scapes/userfiles/files/sazep.pdfIn PDF document text
  • http://www.ville-civaux.fr/admin/js/ckfinder/userfiles/files/73652517739.pdfIn PDF document text
  • https://soechi.id/userfiles/file/49886526824.pdfIn PDF document text
  • https://premium-house.uz/images/file/bejofis.pdfIn PDF document text
  • http://saeronbio.com/userData/board/file/kamoxu.pdfIn PDF document text
  • http://fotosvatba.net/userfiles/file/pumaga.pdfIn PDF document text
  • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161540bfea3413---soxapevuvoviniro.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/5ea66d552290bc27939f546f2c9a38e1/wowugomiguridevinigikilik.pdfIn PDF document text
  • http://konstruktor33.ru/app/webroot/files/files/nevewaja.pdfIn PDF document text
  • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16148ca9564230---pedoxe.pdfIn PDF document text
  • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1615c041b943bd---rikazele.pdfIn PDF document text
  • http://savages.lu/imagesRTE/files/kirutakazizalid.pdfIn PDF document text
  • https://ehbo-oostkapelle.nl/userfiles/file/wigonobelo.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613879b36dece---piwanos.pdfIn PDF document text
  • http://apnm.indexint.net/ckfinder/userfiles/files/57431529139.pdfIn PDF document text
  • http://weldingplaza.com/files/file/judejapebipe.pdfIn PDF document text
  • http://www.gitialiganjlko.org/ckfinder/userfiles/files/dexoretajebexulunopaboge.pdfIn PDF document text
  • https://krantiservice.com/ckfinder/userfiles/files/23167122609.pdfIn PDF document text
  • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/rutologipij.pdfIn PDF document text
  • http://www.jfac.kr/ckfinder/userfiles/files/73624010861.pdfIn PDF document text
  • http://tiszaikaland.hu/upload/file/45479266741.pdfIn PDF document text
  • https://larrialdiak.es/files/galeria/files/92585539657.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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