Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=late+registration+album+zip In PDF document text

  • https://nazuvunu.weebly.com/uploads/1/3/4/4/134438845/c7a0e58a.pdfIn PDF document text
  • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/dufes.pdfIn PDF document text
  • https://luzodogapop.weebly.com/uploads/1/3/4/2/134265842/kevorona.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368486/normal_5f9849446e058.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374835/normal_5f8a575d50d80.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387699/normal_5f95bc9455e7e.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f79.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f79.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a604.bin)
  • https://uploads.strikinglycdn.com/files/9e3593a9-d1b7-44fe-bb4f-ab3ce0dddfe1/93398529735.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/299c7d4a-91e9-4b68-856d-efe6b6855979/kuwonipuxadugemaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21851d66-4f74-45bb-8510-f1f5d45620ef/dog_adoption_certificate_printable.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1032d639-d9f6-45e8-86c9-0f839f9506a4/43075379772.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/0627/8810/files/manual_compresor_sullair_es-6.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/mumiwadamulisokub.pdfIn PDF document text
  • https://s3.amazonaws.com/wiwuxot/anaerobic_and_aerobic_respiration.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/comment_transformer_en_ppt.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/2439/8528/files/30518247771.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/police_interview_questions_and_answers_download.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_off00006f79.bin)

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