Malicious PDF — malware analysis report

Heuristics 4

• 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.
• 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/pify?keyword=this+test+detects+starch+in+solution In PDF document text

  • https://site-1038874.mozfiles.com/files/1038874/14062611622.pdfIn PDF document text
  • https://site-1039919.mozfiles.com/files/1039919/balepukolajojoxowoka.pdfIn PDF document text
  • https://site-1036756.mozfiles.com/files/1036756/joxifibiwe.pdfIn PDF document text
  • https://site-1039224.mozfiles.com/files/1039224/62503831050.pdfIn PDF document text
  • http://safudew.fslwfuels.com/uploads/1/3/0/7/130775432/lanitufoxekoj_netib_numebi.pdfIn PDF document text
  • http://files.fleacircusoz.com/uploads/1/3/2/7/132740499/e5a819.pdfIn PDF document text
  • http://files.hilmarlumber.com/uploads/1/3/1/8/131856754/dodafabifasare-noduxususuv.pdfIn PDF document text
  • http://files.dorpzoelen.nl/uploads/1/3/1/3/131384380/fedalidupuxaz.pdfIn PDF document text
  • http://files.mathtvcourses.com/uploads/1/3/1/4/131406607/kinudifetime.pdfIn PDF document text
  • http://files.michiganrealtysolutions.com/uploads/1/3/0/9/130969845/vodexuberizipa.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/e0806d9a-23db-48c4-83b4-7297f7592c29/77198748510.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6e659b3-8329-4fc2-bd68-a03c3da47680/kaserivatefa.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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