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=diary+of+anne+frank+worksheets+free In PDF document text

  • https://cdn-cms.f-static.net/uploads/4389797/normal_5f9b41a3c0fe4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388613/normal_5f9e002a53842.pdfIn PDF document text
  • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/1e00d4b3c0a3.pdfIn PDF document text
  • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/vaxupamukimalino.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368745/normal_5f9103eea37dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403539/normal_5f90f78ba9c64.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/1/0504/1802/4646/files/walmart_canada_twin_air_mattress.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0294e20-762f-4444-9ea7-684e38578693/kobufofakurusabowaja.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a76d7fe8-ae84-4737-8be2-09a98f628fac/sekojotaja.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/5443/1893/files/top_10_addictive_games_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/2723/4455/files/supply_chain_management_for_dummies_daniel_stanton_free_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 PDF document text

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