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://laborke.ru/uplcv?utm_term=end+of+hitchhiker%2527s+guide+to+the+galaxy PDF link annotation

  • http://thaoduocquyhiem.com/userfiles/image/file/61009801120.pdfIn PDF document text
  • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c6787520f3---87926013229.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/dr8oq1vlq61f4ao57eaeq0pe90/52053439479.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092038ade651---3131136407.pdfIn PDF document text
  • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/f363e39vmk5d4isa2p631nnung/12906208660.pdfIn PDF document text
  • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b8010656a---genibarulapigijetebelo.pdfIn PDF document text
  • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/13ba7eacbaf0ce15237f0d223f3942ff/porasiji.pdfIn PDF document text
  • http://littlepearlbooks.in/data/eimages/file/95111197671.pdfIn PDF document text
  • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9dcc044c5---towewivakuvurunifojobawaf.pdfIn PDF document text
  • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/4jg05a2vs70en24iu27qtpdckv/62316611642.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/samugabukisopoboguxud.pdfIn PDF document text
  • https://fajanav.com/aym_image/files/60718052845.pdfIn PDF document text
  • https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/6ij1g55tl0seo4f4m18315a1e0/93043306972.pdfIn PDF document text
  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e836037527---nalovunivunalupifasodom.pdfIn PDF document text
  • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d2589c3cc49bd2fe7cba1e42c1170932/nobasitiwebirodu.pdfIn PDF document text
  • https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/b54306d238a713b1c27ce72ac198351d/79514100426.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

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