Malicious PDF — malware analysis report

Heuristics 5

• 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 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.
• 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://ttraff.me/wix?keyword=use+an+ascii+character+to+binary+chart In PDF document text

  • http://wimol.creepernationclothing.com/uploads/1/3/1/3/131398225/7039353.pdfIn PDF document text
  • http://jebibajaz.octaviaharris.com/uploads/1/3/1/4/131453119/liwazovi.pdfIn PDF document text
  • http://zupamepus.heatonfeetfootwear.net/uploads/1/3/0/7/130775732/siruterunef.pdfIn PDF document text
  • http://files.ballycastlehistory.com/uploads/1/3/0/9/130969139/0ad0002e636e.pdfIn PDF document text
  • http://batula.amandakloy.com/uploads/1/3/2/3/132302978/93549c6533480.pdfIn PDF document text
  • http://zubof.thehammerandanvil.com/uploads/1/3/2/3/132303221/tapil.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://466533c8-63c3-4489-b16c-138158bf27a3.filesusr.com/ugd/3bcfef_7c287e13be3e4cc5b71fed4123d02564.pdf?index=trueIn PDF document text
  • https://5d8d4634-c1ac-4ee2-8151-1558c2a4045e.filesusr.com/ugd/dc8a8e_b1529490b60f4ad2933c7857a9165449.pdf?index=trueIn PDF document text
  • https://1e429b8c-f289-41de-90da-e67d47f7ba8f.filesusr.com/ugd/2f7815_9bc3e970481645e49b8c1e2614ad5f39.pdf?index=trueIn PDF document text
  • https://50415c25-dbbd-4f09-b61e-f2464dd55caf.filesusr.com/ugd/eb4c03_88a9282bc4b5448d9996e97575048d5d.pdf?index=trueIn PDF document text
  • https://146405b1-7178-4ed3-92af-bcde5c8f91e1.filesusr.com/ugd/2e16aa_05a05eb2a61541dd8922aadc2ebd9935.pdf?index=trueIn PDF document text
  • https://e625e9d6-8da9-4933-85a4-57dc612b5756.filesusr.com/ugd/8c0e65_0ca17d71a6d649818cb53f4791a19811.pdf?index=trueIn 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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