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 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.
• 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://ggtraff.ru/strik?keyword=active+passive+table+pdf In PDF document text

  • https://site-1039227.mozfiles.com/files/1039227/59482779181.pdfIn PDF document text
  • https://site-1038901.mozfiles.com/files/1038901/mapodamogap.pdfIn PDF document text
  • https://site-1038494.mozfiles.com/files/1038494/57903240661.pdfIn PDF document text
  • http://nenikajej.mdflatt.com/uploads/1/3/0/7/130740393/nukadiru.pdfIn PDF document text
  • http://tafepame.en.liquidarmor.eu/uploads/1/3/1/8/131856330/jomivepafutad.pdfIn PDF document text
  • http://zexiwufab.kevinmcgeoughelectrical.com/uploads/1/3/1/0/131071157/e70f0b653.pdfIn PDF document text
  • http://files.iamenoughwithgod.com/uploads/1/3/1/4/131483234/denobumozulebax.pdfIn PDF document text
  • http://files.tsabs.bg/uploads/1/3/1/3/131382786/2647185.pdfIn PDF document text
  • http://files.victorystitches.com/uploads/1/3/0/7/130776201/4c7b8a33.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://uploads.strikinglycdn.com/files/b014d77a-8d3a-4a8c-9b42-51d44c2d7c31/98342463649.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/867049cf-d4ac-4856-825e-6f0e4bc6ceba/jetajewefasemipupubuxukak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fe3cced-4eb8-4a44-9c4c-6ab745ab84d2/gejobor.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4c09bfe6-b472-486a-88c1-c2da5dd19f3e/59222745656.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6fd6f2d5-88a5-4af9-bcfa-9b785e9ceef2/83110625716.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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