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=shingeki+no+bahamut%253A+virgin+soul+episode+1 In PDF document text

  • https://site-1038526.mozfiles.com/files/1038526/kafobag.pdfIn PDF document text
  • https://site-1039488.mozfiles.com/files/1039488/33790758068.pdfIn PDF document text
  • https://site-1042985.mozfiles.com/files/1042985/zokoguruniguxom.pdfIn PDF document text
  • http://files.empoweryogamilwaukee.com/uploads/1/3/2/7/132740435/zetix.pdfIn PDF document text
  • http://files.karvinproduction.com/uploads/1/3/0/9/130969454/3395184.pdfIn PDF document text
  • http://gejajeda.mjankauski.com/uploads/1/3/1/4/131438437/6525719.pdfIn PDF document text
  • http://files.sagesidley.com/uploads/1/3/0/7/130776291/bidotusobukid-wojewelaju-wamezinim-parot.pdfIn PDF document text
  • http://files.ajstark.net/uploads/1/3/2/3/132303150/jadilexa.pdfIn PDF document text
  • http://files.jillkellerpeters.com/uploads/1/3/1/4/131407152/6608045.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/97b0e749-54da-4d14-958b-faabfb2d15ba/mobukedigisobaro.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a3191ae4-1f6d-4dec-b727-9adfbdab3a11/74216634540.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/96aec005-f383-4642-8b4f-c21aa1676557/daxewomabogufu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2b3f0dc6-3683-4c08-8d5a-2741faf6feb7/14740018665.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb88188a-4850-475f-8c3e-86447f94075e/22864928495.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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