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://ggtraff.ru/123?keyword=doubling+multiplication+strategy+worksheets In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367627/normal_5f878074b74c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369329/normal_5f87cb57b8d93.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365620/normal_5f86ff82152a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366366/normal_5f87af0d3574f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367959/normal_5f875f5f4b7fb.pdfIn PDF document text
  • https://site-1044113.mozfiles.com/files/1044113/66239301169.pdfIn PDF document text
  • https://site-1041946.mozfiles.com/files/1041946/levodiruruzowetokejajukaj.pdfIn PDF document text
  • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fibaxizimudez.pdfIn PDF document text
  • https://ninukiwipovesot.weebly.com/uploads/1/3/0/9/130969879/manibaz.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8980310.pdfIn PDF document text
  • https://wuwenivavubujer.weebly.com/uploads/1/3/1/4/131437756/ce6e1f3a8e12371.pdfIn PDF document text
  • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/6069273.pdfIn PDF document text
  • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/2122744.pdfIn PDF document text
  • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/2313c5c.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/exit_code_137_exit_message_oomkilled.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5962/6655/files/lipid_management_guidelines_2020.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0472/3130/3845/files/pick_me_up_gifts_for_him.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6953/7956/files/android_card_games_apk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/8870/7738/files/xotemejadulerenasofuti.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7727/6326/files/how_to_teleport_to_coordinates_in_minecraft_on_xbox.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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