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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://vilenefex.ru/strik?utm_term=pdf+size+compressor+200+kb PDF link annotation

  • https://tidovikazixuwuj.weebly.com/uploads/1/3/4/3/134316919/d85220473a91.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4448743/normal_6056ce87cccfb.pdfIn PDF document text
  • https://nizomepovunamox.weebly.com/uploads/1/3/4/3/134305669/6544125.pdfIn PDF document text
  • https://rigitugatelimo.weebly.com/uploads/1/3/4/1/134131632/dfb9b579fcf404.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369908/normal_5fcc48f68d67e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4496607/normal_6059d4660aac6.pdfIn PDF document text
  • https://panodetis.weebly.com/uploads/1/3/4/6/134669877/8100695.pdfIn PDF document text
  • https://memozarukun.weebly.com/uploads/1/3/4/3/134378051/61c0db49ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4469836/normal_60201b63d38cc.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4469104/normal_5ff6591a6b950.pdfIn PDF document text
  • https://pupaxutakigi.weebly.com/uploads/1/3/4/5/134579126/zezet_zibixofumito.pdfIn PDF document text
  • https://dagigofeno.weebly.com/uploads/1/3/4/8/134887245/tekobesado.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4444877/normal_5fe96e3d83c99.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/2bf7ad98-977a-402b-9812-6bf13afc4081/tipos_de_grupos_sanguineos_y_rh.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ccb66196-cdb1-42ad-95c3-73e23334177b/the_modern_corporation_and_private_property_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fd9cc0ad-4b39-42b5-b6f6-076a63e29876/not_enough_spirituality_crossword_clue.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d26537f-a488-40cf-add5-69f7f36ba3b4/gazezorazeditazefikuvodit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/109e85b1-c64f-467d-945b-fd432653a0ea/30800554800.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aea3e3fa-eb2f-4815-b65f-4fe1cc4cb310/bupoki.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3428271-0d1c-4f30-ab64-c812d54c0043/cooler_motor_winding_data_book.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73ec8237-531c-4a81-a3f5-23c86befacd9/kali_linux_nethunter_download_for_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f02fba76-b2a7-4255-b2e1-262d0dc6cd52/marvel_vs_street_fighter_ps1_combos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ae550e0b-6e16-4f6b-96df-5b68bd8457ba/how_to_make_a_creeper_farm_bedrock_1.16.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://scripts.sil.org/OFLIn PDF document text

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