Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://cctraff.ru/pify?keyword=wolfram+alpha+triple+integral In PDF document text

  • https://xoxajunun.weebly.com/uploads/1/3/4/3/134351876/8597068.pdfIn PDF document text
  • https://guburumo.weebly.com/uploads/1/3/4/3/134322172/4147041.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/sowajagilemokaj_sebuzewij_jolepobisi.pdfIn PDF document text
  • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/sulag_beramezobam_jevukisu_zajifetapog.pdfIn PDF document text
  • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/45e1c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365634/normal_5f86fcc2c4d8c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408864/normal_5f978bdf69569.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368762/normal_5f950f8adbfce.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368969/normal_5f9375a218f29.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a00f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a00f.bin)
  • https://uploads.strikinglycdn.com/files/29479c48-190f-4014-8398-f6183b0cd7ef/64841833674.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5899fd64-dd07-4536-9a9a-f5649ea7856e/libro_paulo_coelho.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3eb77662-830e-410b-9ec0-da46b0f86842/muvawino.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c6acbb92-b4b7-4087-8a05-8e030b64b4da/mumewowevo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/207015aa-45a5-464e-bb77-41738d4fde87/cheyenne_cummings_playboy.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/ruxuduwo.pdfIn PDF document text
  • https://s3.amazonaws.com/saxefi/fusavarutujasiduk.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/76912209778.pdfIn PDF document text
  • https://s3.amazonaws.com/purixifusipelid/mathematical_logical_intelligence.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6ababc3-b17c-4a91-9a79-8c13e0f9f20e/turixipewexumamatu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5eb8f6e9-6f5f-4be1-8179-caf87e7b00d1/92121926356.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb2c0aca-39ea-4401-9d77-ba1d8379f65f/84933631007.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/302b2c3d-fbfe-4906-a555-8d0c51bf7a8a/radojidekibijo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/861cf31e-9182-415d-bb94-c88cecc4022e/fotejomudojegugitupuf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bddf118b-5252-45bb-a4ef-19fd458473bc/functional_analysis_textbook.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 extracted file (font_00_sfnt_off0000a00f.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000d95c.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000d95c.bin)

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