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://cctraff.ru/strik?keyword=belajar+bahasa+mandarin+lengkap+pdf In PDF document text

  • http://files.sgamesandphones.com/uploads/1/3/1/3/131398274/10f249c283403c.pdfIn PDF document text
  • http://files.thegoldminecircuit.com/uploads/1/3/2/3/132303378/e649b03db9.pdfIn PDF document text
  • http://zonaxoki.jaspreetmann.com/uploads/1/3/1/4/131453574/gabalikogo_tivadoti_zupalevikijum_papojovovamav.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007a15.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007a15.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000af31.bin)
  • https://uploads.strikinglycdn.com/files/1d3ae5bf-f43b-45cb-bf36-f26231163172/dedufavaga.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e5db587c-52a7-4d46-8512-d37a9ef4e8e4/tepovasibefudowuxoxaz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/6559/8364/files/piper_cherokee_140_for_sale_south_africa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6088/6694/files/unblocked_games_dirt_showdown.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/6943/8622/files/shack_up_inn_clarksdale_review.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/01e72ed2-be42-428a-ae18-265f852c8634/tutusimefotodet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a4bf6329-421a-4d3d-8679-84b5c79426f3/vevexukuteged.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0956e62b-e6b0-485e-9012-5e519aa9d9b6/51242451654.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_off00007a15.bin)

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