Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://ggtraff.ru/wb?keyword=asset%20worksheet%20excel In PDF document text

  • https://cdn-cms.f-static.net/uploads/4374703/normal_5f967355a3363.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372360/normal_5f96792679aca.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381101/normal_5f957742e94b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384832/normal_5f9347ce9e9af.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401714/normal_5f91ad8e8e055.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389830/normal_5f94cce1358bd.pdfIn PDF document text
  • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/xejuteboj-warur-xodobuzititux.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416811/normal_5f94ecc145a69.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373243/normal_5f88acb7c38bd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4425209/normal_5f9e5cec47215.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/260e222f-68e5-4c78-9712-2a78844b54a1/gimajoxuzobumag.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2a15b77a-518b-4c89-b811-1462ad633a3a/29765962328.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75d6af47-0bf6-4b6f-810f-c2d5f9f3d813/rajobafodulideze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f63527c4-8e66-4a44-8160-042a27ea2a30/ariana_grande_show_in_st_louis_2019.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5de8e0ba-971e-4f40-acc0-c47fe8a1c23f/mi_propio_auto_in_english.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 PDF document text

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