Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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
• 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/aws?keyword=employees+provident+fund+form+19+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375503/normal_5f92c3b055c41.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369788/normal_5f87eb2af06bb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f88658c76161.pdfIn PDF document text
  • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/5f92d.pdfIn PDF document text
  • https://xavoxoxuda.weebly.com/uploads/1/3/1/3/131379246/1da7ccef7.pdfIn PDF document text
  • https://gelekale.weebly.com/uploads/1/3/4/2/134266195/e19037.pdfIn PDF document text
  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/1045037.pdfIn PDF document text
  • https://musazowoxagaw.weebly.com/uploads/1/3/4/3/134323980/8885761.pdfIn PDF document text
  • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/lexiju.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375531/normal_5f8b6c304761e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4394060/normal_5f9543732d124.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379038/normal_5f91f48643208.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/zetare/memaze.pdfIn PDF document text
  • https://s3.amazonaws.com/kakef/tetaradeb.pdfIn PDF document text
  • https://s3.amazonaws.com/xarojapi/bodybuilding_eating_plan.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0abe801a-7e6f-4f11-8f5e-a7066019b9ff/96993595232.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42aa696e-debe-402e-a16e-a43c7af5b183/52170367973.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7a4704de-3085-4c7a-a2b1-4c399c96f2f5/7176148850.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f556a1f3-1fdf-42cd-9689-247c1c2aec2a/45885580875.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5b62952-a7e8-4c80-92f9-2b3cc38edac5/86657432744.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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