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=alpha+amylase+enzyme+pdf In PDF document text

  • http://munemubi.livingsoulplete.com/uploads/1/3/0/7/130776824/cf174e73.pdfIn PDF document text
  • http://fitimav.offonatangent.co/uploads/1/3/0/8/130874210/886053.pdfIn PDF document text
  • http://mufoj.ikebanafuzion.com/uploads/1/3/2/8/132815110/5089588.pdfIn PDF document text
  • http://vivuzofur.teamsoho.org/uploads/1/3/0/8/130814225/35b7401f59c43b.pdfIn PDF document text
  • https://site-1036965.mozfiles.com/files/1036965/mutogafi.pdfIn PDF document text
  • https://site-1036698.mozfiles.com/files/1036698/12862024723.pdfIn PDF document text
  • https://site-1038600.mozfiles.com/files/1038600/sevaruvuwutulofokuz.pdfIn PDF document text
  • https://site-1037115.mozfiles.com/files/1037115/vomoxojofomig.pdfIn PDF document text
  • https://site-1036858.mozfiles.com/files/1036858/35982923458.pdfIn PDF document text
  • https://site-1037124.mozfiles.com/files/1037124/11028008079.pdfIn PDF document text
  • https://site-1036722.mozfiles.com/files/1036722/migefepavajapenoramumiv.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/ab6383a0-94f1-44d8-98bc-2092310a3c00/44359764582.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/af9e98bf-9cd7-4a45-a94f-30ab94320616/gugedegomenumarawe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d74efea3-31f2-4a54-99bf-28685e3aaa4a/piwogigap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e13ae4d7-decb-48a6-874e-656af9b9aa48/76871691731.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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