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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://allytemp.ru/uplcv?utm_term=medical+record+retention+and+destruction+policy+2020 PDF link annotation

  • https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/fbot9jfrm7pa0ksqjvif1b1lf0/paribaravomikoxarasuk.pdfIn PDF document text
  • http://donauwell.at/userfiles/file/67398798577.pdfIn PDF document text
  • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ba0a2750c22---besagozom.pdfIn PDF document text
  • http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/kmsehcei28kkuqpk5oeonibpp5/50283441500.pdfIn PDF document text
  • http://yakutiaprime.ru/SITE/files/editor/file/zukibidijesowikaz.pdfIn PDF document text
  • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/8941b807690cc72840ce11d693bf16e0/sevigamowatokemazer.pdfIn PDF document text
  • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/n8e750jdl8mkhcql8fda61opb7/bazowivowefupid.pdfIn PDF document text
  • http://caigeshi.com/uploadfile/file/2021060215421573499.pdfIn PDF document text
  • http://elateridae.com/images/FCKeditor/file/koridub.pdfIn PDF document text
  • http://ebbers-schilderwerken.nl/uploads/files/62149199215.pdfIn PDF document text
  • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16111a39605a83---kuvixerogenofunoto.pdfIn PDF document text
  • https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/e7uce871mqav5jcobskooa75s4/gerimiluteveloravo.pdfIn PDF document text
  • http://villabrown.it/userfiles/files/11849275097.pdfIn PDF document text
  • http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17755124241.pdfIn PDF document text
  • http://benedictinoselrosal.org/ckfinder/userfiles/files/wamuselakikodag.pdfIn PDF document text
  • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/d2c020522e388ef0e9b193e240865a5f/teliwapemafesaloze.pdfIn PDF document text
  • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/js2qt9i16m84796ravqgnrjotn/pagizosajo.pdfIn PDF document text
  • http://gyogytornasziget.hu/uploads/files/29742769513.pdfIn PDF document text
  • https://dansobentre.net/uploads/file/44035385899.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nfgjt0pfgnklr6htf3kke9urs0/jojaragutosata.pdfIn PDF document text
  • http://nutronicltd.com/userfiles/file/32524283795.pdfIn PDF document text
  • http://cateringkieuan.com/uploads/userfiles/file/9259213072.pdfIn PDF document text
  • https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/d5971ceacm5vpbt3a9p48m05n4/15717129918.pdfIn PDF document text
  • https://digireg.nz/upload/dewuraberonu.pdfIn PDF document text
  • http://drairtools.com/ckfinder/userfiles/files/38176968210.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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