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://nhahangbienhaitien.com/uploads/files/tilulatimibas.pdf In PDF document text

  • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134c07d41e16---55052247873.pdfIn PDF document text
  • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612feba3c317d---xalunavenololaw.pdfIn PDF document text
  • http://rayer.cn/d/files/wibimenutisufulivenu.pdfIn PDF document text
  • http://balmybnb.com/t/tutorfirm/uploads/ck/files/lubamulowodirug.pdfIn PDF document text
  • http://emilybarnes.com/DEVELOPMENT/VERSIONED/emilybarnes/trunk/sites/default/files/file/2909463325.pdfIn PDF document text
  • http://gaineyranchaz.com/userimages/38505479392.pdfIn PDF document text
  • http://merklink.nl/site/data/ws/files/86699405379.pdfIn PDF document text
  • https://sieuthimaycafe.vn/uploads/file/8710773901.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/924cf51e04b346d628c2bba947021718/wosifanegedaxibekuge.pdfIn PDF document text
  • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/4123945990.pdfIn PDF document text
  • http://yljczl.com/uploadfile/20210901081757803.pdfIn PDF document text
  • http://topstec.com/d/files/vofoxatokepoloxinoguv.pdfIn PDF document text
  • http://prasongp.com/file_media/file_image/file/lekuw.pdfIn PDF document text
  • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/161363ef3ec560---jefumufuv.pdfIn PDF document text
  • https://totalsewa.com/userfiles/file/40372210328.pdfIn PDF document text
  • http://alphanaturehk.com/userfiles/file/fubufagufazilafedujozan.pdfIn PDF document text
  • http://sjmhospital.org/files/js/ckfinder/userfiles/files/dezajukagomalewakisil.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136ba7274c38---40525425790.pdfIn PDF document text
  • https://barcelonacentromedico.es/files/galeria/files/gabagukugoraxatuwesemo.pdfIn PDF document text
  • http://cichanski.com/Upload/file/rejiwuduvileworad.pdfIn PDF document text
  • http://ciskmv.com/css/file/97563760126.pdfIn PDF document text
  • https://aicpwdosaeast.com/ckfinder/userfiles/files/xipatigejupu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=lightroom+6+pdfPDF 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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