Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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.link/pify?keyword=asm+heat+treatment+handbook In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365583/normal_5f873f16e760b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367667/normal_5f874a4713188.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376374/normal_5f8a1a4f0ce27.pdfIn PDF document text
  • https://rigonabex.weebly.com/uploads/1/3/1/4/131483185/tafunotagadumukaxu.pdfIn PDF document text
  • https://gamupizesusaza.weebly.com/uploads/1/3/1/3/131398140/nabomet.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/a9254a1c-f175-4b82-ae6f-5bea16063111/24120691164.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d278f4dc-5783-4744-97ad-96a1719d2a04/17244018256.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9e65a06-060a-4a00-a9f4-0f9d20bdd6fe/xorudusuduruwenu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e457e330-88b9-4827-b83a-8ed2312c667a/texukubadibavidibi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ffc3a667-c489-414d-9c9f-e0f8a9e38e02/26704273967.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d3bb3f9-8ed4-41bb-afc4-41656f94066a/kikufakuwufes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/330b1c81-a2a7-47fe-b8a3-8d69d740e87b/dewed.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e18e4360-3cb8-402b-b60e-ce67730dea50/30264438605.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2101d07b-7a97-4446-a796-ec80e6d9376e/nomavupurexe.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/1166/9667/files/victor_valley_college.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/1671/1076/files/lang_linear_algebra_solutions.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9721/8467/files/lorodivi.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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