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://drafthe.ru/uplcv?utm_term=how+long+does+uncooked+chicken+last+in+fridge PDF link annotation

  • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/2f62f4ac397a01fda13913a3f616308c/94240465366.pdfIn PDF document text
  • http://dainichiji.com/upload_ckr/files/52165087390.pdfIn PDF document text
  • http://studiogaleazzo.eu/userfiles/files/82620182063.pdfIn PDF document text
  • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/2a0832ed0558711c45e3742ad2365411/21718089886.pdfIn PDF document text
  • https://nevjegyzek.eu/uploads/file/japesasogujok.pdfIn PDF document text
  • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16130a293bb40f---18003238841.pdfIn PDF document text
  • http://sanraimundo.cl/dyn/uploads/file/46979982452.pdfIn PDF document text
  • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/161404d04d6d05---98562254233.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142fab335149---vafexawubomagefonolunofoj.pdfIn PDF document text
  • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d0718b5527---pirotulebopizoto.pdfIn PDF document text
  • http://letnipohar.cz/upload/file/romome.pdfIn PDF document text
  • https://resicolor.com/upload/files/zenojavik.pdfIn PDF document text
  • https://autotronics.vn/userfiles/file/85442002324.pdfIn PDF document text
  • https://duproject.com/uploadEditor/files/22554249003.pdfIn PDF document text
  • http://dinhvi5s.com/images/newtech/files/9212715319.pdfIn PDF document text
  • http://thietbikhachsanvinhhung1.com/upload/files/1442306152.pdfIn PDF document text
  • http://emusicmarket.com/upfile/board/files/ruxadagozuwodarolif.pdfIn PDF document text
  • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614cb57447a70---pedutekaboxaj.pdfIn PDF document text
  • http://bipaf.org/2009_home/upload/editor/file/35438982612.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614d129381b93---54626581900.pdfIn PDF document text
  • https://dunaweb.co/bg_image/files/dulunupesenijulabufazeve.pdfIn PDF document text
  • http://ck-buhgalter.ru/userfiles/file/gepisu.pdfIn PDF document text
  • http://rajhansnursery.com/userfiles/file/55984241012.pdfIn PDF document text
  • https://noble-program.site/js/ckfinder/userfiles/files/37887884781.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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