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.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://cctraff.ru/strik?keyword=minecraft+server+1.+8.+7 In PDF document text

  • http://files.bookcellarlwonline.com/uploads/1/3/1/8/131860787/xejapami.pdfIn PDF document text
  • http://xepafe.melodyarabo.com/uploads/1/3/1/0/131070792/sodesomafu.pdfIn PDF document text
  • http://files.dotsleadership.com/uploads/1/3/2/6/132682124/4702b607e94d4.pdfIn PDF document text
  • http://files.momentsbyannephotography.com/uploads/1/3/1/1/131164499/9b72b.pdfIn PDF document text
  • https://site-1041694.mozfiles.com/files/1041694/14969738977.pdfIn PDF document text
  • https://site-1036667.mozfiles.com/files/1036667/98909731257.pdfIn PDF document text
  • https://site-1043564.mozfiles.com/files/1043564/77505243296.pdfIn PDF document text
  • https://site-1036667.mozfiles.com/files/1036667/bufopemazo.pdfIn PDF document text
  • https://site-1036972.mozfiles.com/files/1036972/95117123023.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/215a078b-f61d-4399-907e-a75a8b2ece5e/6966415951.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d15b254-a5ce-4aa9-9371-f7cb2d59dee5/darikupuninetudumikapowo.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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