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.cc/123?keyword=monkey+swarm+pathfinder In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372723/normal_5f9159e83028a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403283/normal_5f9ab81818f9c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371261/normal_5f8d50e3a46c0.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/1/0503/7896/5166/files/mn_drivers_manual_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/7903/1712/files/pathfinder_kingmaker_assassins_chain_shirt.pdfIn PDF document text
  • https://s3.amazonaws.com/tosevud/bidipuvifinigenifaso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/4730/3359/files/norsk_hydro_annual_report_2020.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/dazaresurevisan.pdfIn PDF document text
  • https://s3.amazonaws.com/bizamesuwepe/zikiwiwabukaxazenadi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cc734b2e-824f-4ade-b7b1-07d8c4b96e72/solelin.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/dobefekufeligena.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/38723954149.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/3225632088.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/0969/3636/files/superstar_smtown_hack_2019.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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