Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://crewmak.ru/uplcv?utm_term=webbi+boi+3d PDF link annotation

  • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/epbu196kcdg1ar8h0trb5840v2/wolob.pdfIn PDF document text
  • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161450c6a48ed5---sisuwumotiweba.pdfIn PDF document text
  • https://kermiradiatoriai.lt/images/files/sozaduzarizevegemesale.pdfIn PDF document text
  • https://www.q-jin.ne.jp/ckfinder/userfiles/files/52923774729.pdfIn PDF document text
  • http://lindendirect.com/tempimg/file/14091016159.pdfIn PDF document text
  • http://lmleadmanagement.com/userfiles/files/42542658211.pdfIn PDF document text
  • http://chinalabware.es/d/files/nulelokasubedaraxurowew.pdfIn PDF document text
  • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613daf6293a46---73712770339.pdfIn PDF document text
  • https://sydneystudytour.com/accounting/userfiles/file/91026369827.pdfIn PDF document text
  • http://dui-antidote.com/images/userfiles/file/teferinofasarutavugi.pdfIn PDF document text
  • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16143bbfa9a6a3---ponawinobevoripanojarir.pdfIn PDF document text
  • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/1614121f5d1cda---21669134722.pdfIn PDF document text
  • http://entryexpress.online/chapter_images/files/supamikapijarepunejo.pdfIn PDF document text
  • http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a375551890---luvekesuxiruzelegux.pdfIn PDF document text
  • http://ajtoablakcentrum.com/_user/file/bijug.pdfIn PDF document text
  • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401259bffe7---31703853138.pdfIn PDF document text
  • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613739c721926---89926981944.pdfIn PDF document text
  • http://paintmaster.hu/js/ckfinder/userfiles/files/74365727112.pdfIn PDF document text
  • http://xaydungphongphu.com/uploads/files/fujemirukugapu.pdfIn PDF document text
  • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae7573b620---vewaramaxevozuromow.pdfIn PDF document text
  • https://www.jnvhardoi.org/ckfinder/userfiles/files/58058379518.pdfIn PDF document text
  • http://www.niziointerior.pl/upload/file/26040979036.pdfIn PDF document text
  • https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/b58796cdc3d23309731954be875f9fe1/zumuzugemotabewebuvo.pdfIn PDF document text
  • https://mimpishio.com/contents/files/1098245600.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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