Malicious PDF — malware analysis report

Heuristics 4

• 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 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://cctraff.ru/pify?keyword=condensed+electron+configuration+for+br In PDF document text

  • https://site-1042867.mozfiles.com/files/1042867/55268501222.pdfIn PDF document text
  • https://site-1040600.mozfiles.com/files/1040600/mubejujiwa.pdfIn PDF document text
  • http://files.triathletewithin.com/uploads/1/3/1/3/131378838/bb794e7dee4864d.pdfIn PDF document text
  • http://files.randomfrequents.com/uploads/1/3/1/3/131380558/6138371.pdfIn PDF document text
  • http://files.visionlampasas.com/uploads/1/3/0/7/130776075/bimaniwogenuzixirutu.pdfIn PDF document text
  • http://files.zakeryrey.com/uploads/1/3/2/7/132740873/radubesawem.pdfIn PDF document text
  • http://files.mectacprinstructor.com/uploads/1/3/1/4/131437740/2f469132278.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/1/0433/6749/7880/files/64356825217.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/kailua_intermediate_school_district.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/4834/5500/files/tulimekakazafogafiwibezum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/1805/0984/files/what_makes_a_package_look_suspicious.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/583573f7-1f34-4da5-8c80-ed45408d7533/zuronowekexijemudanutagu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/035c2c96-7b23-4e52-bf38-d0f601e7ce8d/26059137888.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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