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://nipisod.ru/strik?utm_term=how+to+activate+keyboard+light PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4370768/normal_605450666c3b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365628/normal_5fd60edf75483.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451206/normal_5fd9abaf828f8.pdfIn PDF document text
  • http://gagivukamuw.getenjoyment.net/catalogo_mary_kay_septiembre_octubre_2020.pdfIn PDF document text
  • http://nusezuretoti.scienceontheweb.net/electron_configuration_worksheet.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483336/normal_600ea92944d0a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426271/normal_605ffb3610642.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4465543/normal_6060fc14416a9.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4390681/normal_600761428789e.pdfIn PDF document text
  • http://xuribof.medianewsonline.com/artificial_intelligence_lecture_notes.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4474727/normal_5ff0238c1283d.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://c534e673-b245-4a6d-8787-855fe96db707.filesusr.com/ugd/e19215_351e8cc05eb14848a60c72aa36823720.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/77878a44-c128-4fd0-a115-d70d2b20d641/linksys_router_ea6500_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/de318c94-1a03-4089-b42c-170058caa928/bawedagakasuxak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/46e3ef4a-7371-48dc-8ba5-82e0d054d682/16932830630.pdfIn PDF document text
  • http://liroporuki.myartsonline.com/online_banking_services.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/761ac7e6-874a-49f7-8b54-f0a3411fa77f/rigol_ds1054z_oscilloscope_firmware.pdfIn PDF document text
  • https://ddd59a73-be73-4575-bd7b-2e5900175f8b.filesusr.com/ugd/5dc0ef_e06343dcc7e14aca947db9f2436f2975.pdf?index=trueIn PDF document text
  • https://aefb6378-f3ca-470a-b9d2-22936542d087.filesusr.com/ugd/fe129c_1c504a17c8644b7cb1c20cee16e4835c.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/89600234-1562-452b-9435-533a4a852337/does_t_mobile_offer_unlimited_hotspot.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/235727a6-1f19-4507-885b-361e4fe05f86/how_do_you_set_the_time_on_a_baby_g_shock_watch.pdfIn PDF document text
  • https://41fe7446-7195-45c8-906d-de5e784989f9.filesusr.com/ugd/e02969_6285e01de3f14c63a6648fc02c7034e2.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/995a3109-4d23-47b2-a17c-ac5a55e50a86/53817170071.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e4694e80-3bf1-4fb3-a460-c9c313cbbe90/2444756323.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc24bc7b-5dbd-435e-bb38-050c8f03c749/how_does_excel_help_students.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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