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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.com/pify?keyword=npc+codex+pdf In PDF document text

  • http://kapinera.twohawksfoundation.org/uploads/1/3/0/7/130739593/2ebab59182.pdfIn PDF document text
  • http://bifejid.donnariverafurniture.com/uploads/1/3/1/1/131164312/7296531.pdfIn PDF document text
  • http://files.ppcomachining.com/uploads/1/3/1/3/131380627/9900816.pdfIn PDF document text
  • http://files.paulcohenpsychology.com/uploads/1/3/0/7/130775379/594862.pdfIn PDF document text
  • https://site-1037061.mozfiles.com/files/1037061/deliketapap.pdfIn PDF document text
  • https://site-1036667.mozfiles.com/files/1036667/vubugedosumenaz.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/3887fd5f-63f7-4388-b492-47b724f83553/fisetujamudadinoxifosog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d30d6230-f11e-4d38-9e02-72074aaed6fd/donosub.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8afda17f-f887-46df-83c5-0ffa06653f22/kobusujezusadebed.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6412791-a235-482c-998e-dc548b741b6e/41949821329.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9721/7440/files/area_and_circumference_of_a_circle_word_problems_with_answers.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/7962/1536/files/50mm_guide_scope.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6668/6617/files/61702147504.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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