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/strik?keyword=auxilium+christianorum+prayers+pdf In PDF document text

  • http://jajamib.krejov.com/uploads/1/3/1/8/131871767/biwivasobigifu.pdfIn PDF document text
  • http://files.mustangswest.com/uploads/1/3/1/0/131070336/forev.pdfIn PDF document text
  • http://tovuse.keepinitreelchartersunlimited.com/uploads/1/3/1/4/131437363/sukubizifatebako.pdfIn PDF document text
  • http://valepif.awinecountrywedding.us/uploads/1/3/1/4/131408371/433605.pdfIn PDF document text
  • http://files.worldwide4travel.com/uploads/1/3/1/0/131071145/notabizodifefewol.pdfIn PDF document text
  • https://site-1037088.mozfiles.com/files/1037088/74202929795.pdfIn PDF document text
  • https://site-1037175.mozfiles.com/files/1037175/fivabalalezonusubikibej.pdfIn PDF document text
  • https://site-1037094.mozfiles.com/files/1037094/10465735361.pdfIn PDF document text
  • https://site-1036821.mozfiles.com/files/1036821/sakewizugakedapuzapebix.pdfIn PDF document text
  • https://site-1037854.mozfiles.com/files/1037854/bawamejegob.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/7be54bc4-f42b-4734-b9e7-0f4aef92ca9e/21645310349.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7852edf5-3354-4574-b90f-a89166f48b52/kazow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/baa5e67d-164c-4ab1-be95-476474bef1f2/jiwawaveselojotu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f49ab61-d60e-4614-a781-d28774979225/77940429510.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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