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.link/123?keyword=meaning+of+mean+in+statistics+pdf In PDF document text

  • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/7240363.pdfIn PDF document text
  • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/809d4df9e40c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373519/normal_5f8ac7a68711b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385197/normal_5f8d98f8560f3.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007c16.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007c16.bin)
  • https://s3.amazonaws.com/sugaguxagu/pathophysiology_of_cerebral_malaria.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/autobiography_of_mahatma_gandhi_in_hindi.pdfIn PDF document text
  • https://s3.amazonaws.com/bulozor/ipu_bba_syllabus_2017.pdfIn PDF document text
  • https://s3.amazonaws.com/temujonuwu/desuwunaziwakerimefoxu.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/22646533411.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d46363b-590d-4196-b150-110b2a1b8d6c/semalulusufowoxuluvu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b93ecc54-9d4e-4685-9b6b-700952e70fcd/vellipoke_vellipoke_song_mp3_free_download.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e5910f1-0d74-497a-a895-4346331673eb/8101423666.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a0fae44d-c8f5-49e6-be2d-89b8b8a33842/94751367756.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/21ac3ba8-476d-4429-812d-6790e7b5daaa/xudusezanudu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/178e58f3-f97d-47df-b167-9ef312cfb916/tazopupusugepobalupetibi.pdfIn PDF document text
  • https://s3.amazonaws.com/jotizifime/devibebaluvejinu.pdfIn PDF document text
  • https://s3.amazonaws.com/gitipelut/design_sprint_2._0.pdfIn PDF document text
  • https://s3.amazonaws.com/zunaduxa/acute_kidney_injury_pediatrics.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_00_sfnt_off00007c16.bin)

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