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/pify?keyword=whatsapp+download+for+android+version+5.1.1 In PDF document text

  • https://kafaziwe.weebly.com/uploads/1/3/1/0/131070109/zomileselonojuzo.pdfIn PDF document text
  • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/ce08ea6c718c.pdfIn PDF document text
  • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/soxuboxesumexi.pdfIn PDF document text
  • https://bizavurodetilu.weebly.com/uploads/1/3/4/3/134391156/lesexuj.pdfIn PDF document text
  • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/14d4f3eee25386.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385012/normal_5f8d206b0004f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366969/normal_5f89fb52b41f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372737/normal_5f89be84db2a7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366022/normal_5f86f5d62d348.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f8f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f8f.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a3df.bin)
  • https://s3.amazonaws.com/tetazino/9198830590.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/19644273965.pdfIn PDF document text
  • https://s3.amazonaws.com/fukezavazuj/mozonimomo.pdfIn PDF document text
  • https://s3.amazonaws.com/nerugiraxura/hidden_markov_model.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d19e043b-a42c-4ca8-958d-e7feb4aff5bf/civ_vi_appeal.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ef550d4b-a531-4d52-b3fd-2ee90a162c0a/9210479343.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0cae1803-b8e5-4d5a-8385-44b105cee611/76167361687.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dcaf956c-ea4a-48f3-9df3-0d90373287a2/89385164005.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e4ba6432-b7c6-49a6-8a3b-4f4780f63738/kumufilobasuvenixi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a062d0e1-f95e-4fb8-803e-f293c2e4e312/jebenukovutogepulifejadi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b362d5da-4e65-4846-b0fe-864ab7ed0144/5588189452.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_off00006f8f.bin)

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