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 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.
• 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.cc/pify?keyword=dog+muzzle+petsmart+canada In PDF document text

  • http://files.encinitasguitarorchestra.com/uploads/1/3/1/3/131379904/5813978.pdfIn PDF document text
  • http://sojig.cleanandgreeninfo.com/uploads/1/3/1/4/131406069/3611278.pdfIn PDF document text
  • http://files.redwagonpreschool.org/uploads/1/3/2/3/132302859/puwokuzanefinimirupo.pdfIn PDF document text
  • http://jaxomux.yayasspecialseasonings.com/uploads/1/3/1/3/131383283/zojonopibugumor_bumisaposu_vinakavuv_tulejufimosup.pdfIn PDF document text
  • http://fufujor.shopnotjustflowers.com/uploads/1/3/2/7/132712593/4a7a2.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://1877303a-f808-11ea-a328-fc4dd43d38a6.filesusr.com/ugd/a86d68_96f8f33e8a4d415d8bc2e34d797d11eb.pdf?index=trueIn PDF document text
  • https://7df6bab1-8c7f-46b5-b304-9bef67b70bb1.filesusr.com/ugd/c5d40f_6455e5df4b554cacb38cb50fe073c8a8.pdf?index=trueIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/97518898331.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/biggest_loser_challenge_excel_spreadsheet.pdfIn PDF document text
  • https://5fd49557-2f2f-4615-a048-ecfba4ac5938.filesusr.com/ugd/70e7d4_b159d03c157a4c9e9fda99e08d83ac3b.pdf?index=trueIn PDF document text
  • https://dcaf15d6-e3d1-4001-8a30-6202929fa5b4.filesusr.com/ugd/a2de88_924fdfb14803434fba2e3a866ba758f9.pdf?index=trueIn 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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