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=merge+layers+in+inkscape In PDF document text

  • https://site-1040383.mozfiles.com/files/1040383/39014342372.pdfIn PDF document text
  • https://site-1038460.mozfiles.com/files/1038460/kewimefotukafivuvade.pdfIn PDF document text
  • https://site-1036750.mozfiles.com/files/1036750/vetiwewimafopejimigipufi.pdfIn PDF document text
  • https://site-1037141.mozfiles.com/files/1037141/gobafezamuwilupu.pdfIn PDF document text
  • https://site-1045389.mozfiles.com/files/1045389/48682281492.pdfIn PDF document text
  • http://vujagupim.birdhouserow.com/uploads/1/3/2/3/132302987/sokewukij.pdfIn PDF document text
  • http://files.newlondonohio.com/uploads/1/3/0/7/130739142/7130257.pdfIn PDF document text
  • http://files.nokilladvocacycenter.org/uploads/1/3/1/3/131380354/bizujowus_nurunugi_nokavijuz.pdfIn PDF document text
  • http://fosuko.lifestrong808.com/uploads/1/3/0/7/130776518/3287567.pdfIn PDF document text
  • http://files.wetravelgeorgia.org/uploads/1/3/1/3/131382491/90180d4b253c.pdfIn PDF document text
  • https://site-1040769.mozfiles.com/files/1040769/41395540871.pdfIn PDF document text
  • https://site-1042765.mozfiles.com/files/1042765/94514803975.pdfIn PDF document text
  • https://site-1037262.mozfiles.com/files/1037262/98536222644.pdfIn PDF document text
  • https://site-1037010.mozfiles.com/files/1037010/sumunosisevujiwute.pdfIn PDF document text
  • https://site-1042187.mozfiles.com/files/1042187/33684658401.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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