Malicious PDF — malware analysis report

Heuristics 5

• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://bologen.ru/123?utm_term=post+op+fever+5+ws PDF link annotation

  • http://motawosofi.iblogger.org/87234237476.pdfIn PDF document text
  • http://gagefepinulivaf.iblogger.org/unspeakable_joy_douglas_miller_sheet_music.pdfIn PDF document text
  • https://xasizati.weebly.com/uploads/1/3/5/9/135978204/7454350.pdfIn PDF document text
  • https://cdn.sqhk.co/moxibusas/KStgjV6/ice_cream_maker_recipes.pdfIn PDF document text
  • https://cdn.sqhk.co/raxuzuvuluf/fhd5tja/xugisamoxuviwolufuri.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393521/normal_6014536f8cc1a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369648/normal_5fdc37a1c5984.pdfIn PDF document text
  • https://cdn.sqhk.co/bomemenun/XegjhfW/ivan_the_gorilla_still_alive.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381297/normal_6013335e7c5d3.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4448984/normal_5fec166415df3.pdfIn PDF document text
  • https://cdn.sqhk.co/kominepoli/SsDg5gj/nuluxomanidubaxut.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4500438/normal_60012c5a17713.pdfIn PDF document text
  • http://joguxujeganu.iblogger.org/ableton_live_9_lite_project_files.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://puxejinasor.epizy.com/imo_messenger_for_pc_windows_7.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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