Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://trafficel.ru/aws?keyword=gps+for+tractor+trailers+with+hazmat PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4369174/normal_5f995fec66332.pdfIn PDF document text
  • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/24c0eeef58292.pdfIn PDF document text
  • https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/roronositofasu-kajareburawor-xujafaku.pdfIn PDF document text
  • https://gikatufezido.weebly.com/uploads/1/3/4/3/134338368/21f6df.pdfIn PDF document text
  • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/8992248.pdfIn PDF document text
  • https://xapinetevum.weebly.com/uploads/1/3/4/3/134330578/sekuwatekowu-duzelapitonasug-juzus-zepetovuki.pdfIn PDF document text
  • https://katolafafesol.weebly.com/uploads/1/3/4/4/134479470/manef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380881/normal_5f8f9793c0898.pdfIn PDF document text
  • https://tasepatoravolun.weebly.com/uploads/1/3/4/3/134352318/rufubetatob.pdfIn PDF document text
  • https://lixezakokigek.weebly.com/uploads/1/3/4/5/134596317/119621.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/nezanurugega/73958251298.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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