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://gettraff.ru/strik?keyword=organic+chemistry+3rd+edition+klein In PDF document text

  • https://site-1036864.mozfiles.com/files/1036864/momikis.pdfIn PDF document text
  • https://site-1037164.mozfiles.com/files/1037164/sipobukoli.pdfIn PDF document text
  • https://site-1036697.mozfiles.com/files/1036697/62776971884.pdfIn PDF document text
  • https://site-1043120.mozfiles.com/files/1043120/25360887747.pdfIn PDF document text
  • https://site-1037860.mozfiles.com/files/1037860/petujidoxunesava.pdfIn PDF document text
  • http://files.waysidechristianmission.org/uploads/1/3/0/8/130874109/latozenogis-matobozajarizig.pdfIn PDF document text
  • http://files.empireperformancept.com/uploads/1/3/1/3/131379246/wazen-linutatarewek.pdfIn PDF document text
  • http://tejur.sghock.com/uploads/1/3/2/3/132302868/3436268.pdfIn PDF document text
  • https://site-1040251.mozfiles.com/files/1040251/xakezabiretiradevu.pdfIn PDF document text
  • https://site-1038421.mozfiles.com/files/1038421/ledifevexamerubogefu.pdfIn PDF document text
  • https://site-1043536.mozfiles.com/files/1043536/70585365795.pdfIn PDF document text
  • https://site-1038575.mozfiles.com/files/1038575/tuzuzugotukarawiluv.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000060f5.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000060f5.bin)
  • https://uploads.strikinglycdn.com/files/5e84f38e-ac94-4d55-85a5-b15b6f5a104e/19595377818.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 extracted file (font_00_sfnt_off000060f5.bin)

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