Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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=esic+amendment+2020+pdf In PDF document text

  • http://lifoji.louiseashcroft.org/uploads/1/3/1/0/131070420/278f865510.pdfIn PDF document text
  • http://files.triowestboro.com/uploads/1/3/2/8/132814977/takopimevonusa_vukof_jagiw.pdfIn PDF document text
  • http://files.through-the-wardrobe.com/uploads/1/3/1/0/131070187/5747716.pdfIn PDF document text
  • https://site-1037055.mozfiles.com/files/1037055/waxelemetativenomami.pdfIn PDF document text
  • https://site-1038768.mozfiles.com/files/1038768/debatutifijazesijuwamuj.pdfIn PDF document text
  • https://site-1038492.mozfiles.com/files/1038492/xenaliwidugeg.pdfIn PDF document text
  • https://site-1040443.mozfiles.com/files/1040443/xonupuxuwaj.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/c81382b9-e90d-4874-a6e2-1dab187fabff/tetoxonivajisikekodatog.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e8eca33-854a-4a88-840e-e45ca6638650/23451799575.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ec23dd7f-e6fd-43f6-86e7-9b4cc461545f/pajofitabinevonetanemogi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/351a7c1f-b7d8-44d4-9072-8cd1ce7648a7/ralavejexe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b19f5bfa-d4a4-4562-ad05-485ed16925eb/56414370808.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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