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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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/strik?keyword=pubg+winter+map In PDF document text

  • https://cdn-cms.f-static.net/uploads/4382793/normal_5f8b5b8c8903c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365541/normal_5f87157d7bd18.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367283/normal_5f87d4924ff67.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380068/normal_5f8b5ba1c64c4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366652/normal_5f8770125a047.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370078/normal_5f8a9c87d4ee9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367275/normal_5f88a7ded70c1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368999/normal_5f881e1bee372.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365562/normal_5f8b5b75c5cdb.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/wukekulowekisowujezofam.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/1103/0690/files/how_to_draw_jack_skellington_face.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9277/8403/files/jeretatejug.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0360/1308/files/53647130640.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/7080/8765/files/view_nwd_files_on_android.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/69055d52-6533-4fc7-a2b6-54eecb1b2ef3/78938788486.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/2415/8367/files/a_practical_guide_to_the_teaching_of_english_as_a_second_or_foreign_language.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6370/5247/files/14142053601.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/3669/6995/files/vufovetuwiviwo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/9349/2380/files/domain_server_linux.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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