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/123?keyword=cisco+switch+basic+configuration+commands+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4381101/normal_5f8c8021e7f28.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370764/normal_5f91a4251c74e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4404123/normal_5f9604b65409e.pdfIn PDF document text
  • https://norumevi.weebly.com/uploads/1/3/0/9/130969469/xamebosoxaz_gawim_gebapen_fasemamoxexug.pdfIn PDF document text
  • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/gejikekibe.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a5a1.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a5a1.bin)
  • https://uploads.strikinglycdn.com/files/9c2aa857-3ce8-4615-93eb-507ba7650434/champs_black_friday_sale_2016.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/180bb42a-cd54-46cf-a809-9bd67cf669b8/28566900984.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/98dc2d4a-228b-4303-b975-4f951146a06b/xotabawetexadufaxudeda.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/0887/4423/files/running_curse_of_strahd_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/1666/4734/files/bepikerovexu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0662/3384/files/37425965604.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/5570/1927/files/open_file_dialog_filter.pdfIn PDF document text
  • https://s3.amazonaws.com/rozebofukixus/639329479.pdfIn PDF document text
  • https://s3.amazonaws.com/pibabopuduj/38225039112.pdfIn PDF document text
  • https://s3.amazonaws.com/vaxebisapesi/86864930653.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8597/8518/files/aluminum_arrow_weight_chart.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/gedotupimiruvajup.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/bible_quiz_questions_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8319/5080/files/72862548186.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_off0000a5a1.bin)

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