Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://jumiwimov.ru/award?keyword=quimica+inorganica+cualitativa+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4473654/normal_60135f773143b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4489717/normal_604981288b6cd.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cfc603e6-7cd4-4c42-812b-9722deb80ae4.filesusr.com/ugd/0e9fc2_fbfcc583988b4efb9bc09e142e269415.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bc96006-6ee3-4716-9c79-963fb584fc6d/the_summoning_of_everyman_full_text.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/46953bd7-6405-4f29-9ab7-fe706ef9a7b6/monkey_king_the_lost_empire_2001_trailer.pdfIn PDF document text
  • https://20128683-61eb-4207-b985-d468b1a81fea.filesusr.com/ugd/0049ca_eb9dba6e3d324d65a2437da736f03378.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6e411c6-638b-4845-8d34-ecf35eebffe4/55012498573.pdfIn PDF document text
  • https://7fe6b731-3703-45da-bcbe-faf39b4d3392.filesusr.com/ugd/880a7e_766a3425159c4e1ca048b10bf0736da4.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/3cb52ec4-5473-4ef7-acea-8e142bc6bfe8/functional_analysis_definition_and_examples.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79cc0d93-5eb8-431b-94a7-e2056a7947b8/21167123274.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3b69b678-2179-47f6-8267-1a28f242d355/63215661203.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/caa677e6-ece3-4509-9fae-2c2682c50cf6/bushkill_swarm_trap_plans.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/26e3d270-3f92-4254-b6f8-92f1e8252222/physioex_9.0_exercise_4_answer_key.pdfIn PDF document text
  • https://f3b86e06-b3aa-4ee1-82f7-79049f3379a8.filesusr.com/ugd/0c4fd2_51deab8a10854e2dae594bec45cc20f6.pdf?index=trueIn PDF document text
  • https://27f1a270-5048-4778-87f0-574dfe85248a.filesusr.com/ugd/b7306e_1d36a3f23d6044dcbdc7a5db066d2cb6.pdf?index=trueIn PDF document text
  • https://45f61934-b4a1-4335-a9e3-e142d9465b5b.filesusr.com/ugd/0dd040_f4158551854347619abb357dc37b1098.pdf?index=trueIn PDF document text
  • https://5e3b32e6-a537-4a58-a531-ef303a468713.filesusr.com/ugd/120874_0002246e4c1a44958e1599bc9a77bdeb.pdf?index=trueIn PDF document text
  • https://237a2310-9536-43ad-add1-fe73b840a51a.filesusr.com/ugd/8b319d_9e5c64ee3f9b4360898cf41b6c771a76.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/173a759c-207d-40b8-a735-d37910eded50/galuzugemimepofaxuvu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6efcc41-a90c-4b26-bb5e-364738aefd78/genetics_a_conceptual_approach_5th_edition_ebook.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/144a87b0-6a27-475b-94f1-9b1ab6cb4fa8/sademogufewezevupapuwe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f795fc76-8749-4b7d-9fac-fdb0561b8339/xuporukerelifokaxanipupe.pdfIn PDF document text
  • https://1a9cd40a-f0d6-44d4-a143-19288280ca2b.filesusr.com/ugd/7a13df_d0a92ca564804d758fa9cb6676ffafbe.pdf?index=trueIn 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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