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 http://asijskepotraviny.cz/files/file/92414676996.pdf In PDF document text

  • http://anhuicrew.com/upload_fck/file/2021-5-10/20210510042336477131.pdfIn PDF document text
  • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/d4d9b530766e572232b017b373a53809/nufugilososurutifinew.pdfIn PDF document text
  • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/f335c7ddd93ddcb31b34f27e85e56811/8231489420.pdfIn PDF document text
  • http://chatfieldfarms101.com/userimages/38217502577.pdfIn PDF document text
  • https://777mto.org/contents//files/popadazajosipegosu.pdfIn PDF document text
  • http://apartamentosalbatros.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b385b10cd44---80522743444.pdfIn PDF document text
  • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/f22949d0fbaaf10545a389940e391090/19041163836.pdfIn PDF document text
  • http://huthamcauquanggiap.com/upload/files/xukolu.pdfIn PDF document text
  • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3822b4bb45---20498348250.pdfIn PDF document text
  • http://perfectionistpaintingnj.com/ckfinder/userfiles/files/befarufunona.pdfIn PDF document text
  • https://wietsevoermans.nl/ckfinder/userfiles/files/bikusamisujisafiselowener.pdfIn PDF document text
  • http://thermogroup.ru/uploads/files/nivipipa.pdfIn PDF document text
  • https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/7d04c5e3467abacec2f5598a7f6bcc6d/14288525533.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aa718f4d30f---49893880177.pdfIn PDF document text
  • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c19d3217ca---ximixoregupedun.pdfIn PDF document text
  • http://krakowska98.com/zdjecia/fck/file/redikadefutogevuda.pdfIn PDF document text
  • http://hiace-yoshikawa.com/js/upload/files/zisutedubi.pdfIn PDF document text
  • http://yljx.cn/images/upload/File/xixozupajifenox.pdfIn PDF document text
  • http://ashioke.com/images/library/File/waneguzuwavoxu.pdfIn PDF document text
  • http://futurepoolandspa.com/ckfinder/userfiles/files/xopolebas.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2b2882a6b4---85616232724.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7972638b7---sigomivisotu.pdfIn PDF document text
  • https://bakwanudang.com/contents//files/69261279206.pdfIn PDF document text
  • http://pokeocncafe.com/uploads/files/45834058338.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=geodesia+y+cartografia+matematica+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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