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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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/123?keyword=left+4+dead+2+apk+obb In PDF document text

  • https://cdn-cms.f-static.net/uploads/4375209/normal_5f8d171acffc4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369333/normal_5f8955093cc3b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365539/normal_5f874b75a4d4b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376858/normal_5f89ae476e64b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368977/normal_5f87f18130701.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372085/normal_5f8a0fedb0f8d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371783/normal_5f88bb4f51c26.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366043/normal_5f87397b1a2a2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366632/normal_5f871d69714d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369512/normal_5f88f5286d036.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368471/normal_5f8b974bd1eaf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372080/normal_5f8c5144bdc8d.pdfIn PDF document text
  • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/f25c0.pdfIn PDF document text
  • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/4867245.pdfIn PDF document text
  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rugatu-rugot.pdfIn PDF document text
  • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/bd55ea4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366317/normal_5f8780dcf3da3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369327/normal_5f8d407716bb6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370090/normal_5f8ce190e00e7.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off0000c4f4.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off0000c4f4.bin)
  • https://uploads.strikinglycdn.com/files/d0aaedbe-ee8f-4114-ac4f-69e37201e1eb/mekamadurudukuve.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ac968324-a5a9-4549-a6b5-26bf5cf6b4ce/50834861527.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 extracted file (font_01_sfnt_off0000c4f4.bin)

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