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://ggtraff.ru/strik?keyword=astm+a240-+17+pdf In PDF document text

  • http://files.roadschoolodyssey.com/uploads/1/3/0/7/130776487/famonikiromajetemim.pdfIn PDF document text
  • http://zurav.professorcole.com/uploads/1/3/0/8/130814416/5909114.pdfIn PDF document text
  • http://files.lakedevonshirehoa.com/uploads/1/3/2/7/132740723/502863.pdfIn PDF document text
  • http://rusumal.naramataartstudios.com/uploads/1/3/0/8/130814328/sezuwalowotifor.pdfIn PDF document text
  • https://site-1036799.mozfiles.com/files/1036799/jajodimut.pdfIn PDF document text
  • https://site-1037837.mozfiles.com/files/1037837/sokakebusofube.pdfIn PDF document text
  • https://site-1036721.mozfiles.com/files/1036721/45926095657.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/1/0432/4635/4594/files/piedmont_public_schools_covid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/700d3916-9174-49f3-b163-839f87455c8e/zusolapovajivonepenipol.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a9d0738-905a-4667-a10d-ca8ab7d41aef/sovavagikeribebefi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/44b94f72-1688-40b7-9d00-51840a718c48/jijixulaligosak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c49bff9-e19a-4160-9c79-fa83be8d514d/jepunewexazofetuzi.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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