Malicious PDF — malware analysis report

Heuristics 5

• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://trafffe.ru/aws?keyword=365+reflexiones+diarias+pdf PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369506/normal_5f8ed957cd7c2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414688/normal_5fa6238c54f30.pdfIn PDF document text
  • https://fetarulezi.weebly.com/uploads/1/3/4/4/134487317/zusir.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369916/normal_5f96c54a0000f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379053/normal_5f98424da08aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4464861/normal_5fa2a64c23a17.pdfIn PDF document text
  • http://www.cliIn PDF document text
  • https://cdn-cms.f-statiIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/d6b6e3cb-33cf-47f1-93e2-9abe189b7089/insteon_hub_pro_2243_222.pdfIn PDF document text
  • https://s3.amazonaws.com/novipaliwid/powershell_export_groups_members.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a31cd94d-4fe8-4ad4-9916-561d83c52c7b/13624227890.pdfIn macro / runtime command snippet
  • https://uploads.strikinglycdn.com/files/5038fda4-3547-424f-b964-9fb7186c910e/the_brothers_grimm_hansel_and_gretel.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eeea5569-2221-489d-99df-0a65dc22691a/xaxesudimu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1812cb32-15f0-40a3-abda-6488872806e6/pesil.pdfIn PDF document text
  • https://s3.amazonaws.com/warapagefasovi/heidi_jo_s_jerky.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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