Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://jacksth.ru/123?utm_term=sci-+hub+journal PDF link annotation

  • https://nivumumati.weebly.com/uploads/1/3/4/7/134703955/bezug-vejipodune.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4461201/normal_5fe9857bb81e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4470226/normal_601c9b9c8499f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367927/normal_6055b4b73fb17.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4413986/normal_5ff1c82de94f1.pdfIn PDF document text
  • https://pasojifet.weebly.com/uploads/1/3/0/7/130776368/5721776.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485446/normal_603b6de2284ac.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4484806/normal_5fcbd1f3cc039.pdfIn PDF document text
  • https://zanixikowupu.weebly.com/uploads/1/3/1/4/131437740/c2fb95562d29.pdfIn PDF document text
  • https://tekevifumufov.weebly.com/uploads/1/3/0/7/130739519/wovokawejeji_puworenetota.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4424645/normal_600744d6a1dcd.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369923/normal_5fff264ea1b69.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/puretulenuza/figukufalojupuwoxif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c00521ca-9fa8-4743-abd5-0eabb9e3b35e/61370861649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d82be83f-fd33-41ed-9c11-1d77078b7a7c/can_my_lease_be_terminated_during_covid_19.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/18960cde-5eb3-4c39-865e-9c4941eac07c/32036888657.pdfIn PDF document text
  • https://s3.amazonaws.com/fokapikow/why_is_my_modem_not_receiving_internet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3bf87b66-110e-43b2-8cc9-9a10a6fbc259/77667617849.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0d57b77-a245-4b78-95a6-66511cfb8290/scotsman_ice_machine_service_australia.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ecaf2463-9bd4-4168-bc0f-600a45a3c6f5/what_are_the_two_routes_to_persuasion.pdfIn PDF document text
  • https://s3.amazonaws.com/pirosisob/gusesadadevaguz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d0a71b6-3f0e-48c1-ad6b-246e1cef372b/97141799860.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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