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://traffset.ru/123?keyword=unblocked+games+4444 PDF link annotation

  • https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/98eb91319e23a8.pdfIn PDF document text
  • https://fewarajinu.weebly.com/uploads/1/3/4/2/134235366/ba3bf70.pdfIn PDF document text
  • https://xedaliwim.weebly.com/uploads/1/3/1/4/131454603/xisuvumuxefisa.pdfIn PDF document text
  • https://raxiruzaxulam.weebly.com/uploads/1/3/0/7/130738564/5631203.pdfIn PDF document text
  • https://folanejo.weebly.com/uploads/1/3/0/7/130776558/dejirunedinovukis.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/8ed37225-4307-482e-b545-e26c0ae849ef/5_minute_personality_test_melancholy.pdfIn PDF document text
  • https://s3.amazonaws.com/tarajix/legapagiv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e69be05-590f-4c52-85a5-39c11f9a94a3/pugor.pdfIn PDF document text
  • https://lawovuti.files.wordpress.com/2020/11/58264413054.pdfIn PDF document text
  • https://s3.amazonaws.com/kelukakeb/montana_treasure_state_award.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
  • https://savannah.gnu.org/projects/freefont/In PDF document text
  • http://www.gnu.org/licenses/In PDF document text
  • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
  • http://scripts.sil.org/OFLIn PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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