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/123?keyword=dani+washington+age In PDF document text

  • https://bipasakugerada.weebly.com/uploads/1/3/4/3/134350286/e524a83.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369501/normal_5f8f400a79f6f.pdfIn PDF document text
  • https://jifurutirijiguj.weebly.com/uploads/1/3/4/5/134528482/7cb505611.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/8034945.pdfIn PDF document text
  • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/lutadotutaku.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367286/normal_5f8b0f149bf1c.pdfIn PDF document text
  • https://sukanogijero.weebly.com/uploads/1/3/4/3/134333185/7975980.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385038/normal_5f8c3fc5c1ec8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403276/normal_5f92480a196d0.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/bb38fb83-4aa2-4bf6-bf89-ce6a673616be/89180623773.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc07d87a-00ab-4bae-a7c0-a0a83e2eedec/dyadic_green_functions_in_electromag.pdfIn PDF document text
  • https://s3.amazonaws.com/divexikav/by_the_pricking_of_my_thumbs_something_wicked_this_way_comes_literary_device.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/north_iceland_official_tourism_guide.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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