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://ttraff.club/pify?keyword=mini+warriors+three+kingdoms+guide In PDF document text

  • http://files.gotapulse.com/uploads/1/3/1/1/131164321/78163ebda862.pdfIn PDF document text
  • http://bifegofet.fitnessnco.com/uploads/1/3/0/9/130969192/9492520.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d77f2ac-9e02-49e9-8689-ad951855f80f/53597555336.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b3600f4-e476-40de-81d6-24c877c684ca/17591471392.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/28145c36-c3ad-4e74-b18e-bdaf4fbf881e/3695085809.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fd0e9558-d3ad-4ae1-a1f3-9e09eb7c4f67/44828536705.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/0625/8083/files/spongebob_full_episodes_free_movies.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/2490/0515/files/skyrim_vampire_lord_armor_mod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0458/2529/4499/files/4138982538.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9951/5816/files/introduction_to_biblical_interpretation_klein_blomberg_hubbard.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2224/4264/files/coc_offline_mod_apk_download_2020.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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