Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafffi.ru/aws?keyword=robin+l+donald+do PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4366989/normal_5f872b213f5cf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375509/normal_5fa33ce12c5d5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4426543/normal_5f97aa9730485.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390684/normal_5f8f309518bb2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415302/normal_5f9a2f85cac95.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/5f01b42e-4d04-488e-9e4f-b1dd6e19b0a4/command_and_conquer_red_alert_2_torrent.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/69510672-7802-4879-9a37-5f2aa091667f/lageforubagilav.pdfIn PDF document text
  • https://dufakeribeze.files.wordpress.com/2020/11/20778825530.pdfIn PDF document text
  • https://virinumit.files.wordpress.com/2020/11/on_parmak_klavye_dersleri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/85882b6e-19b7-4272-9915-5745b54e90bf/73538726975.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/41b34fa8-5537-41d4-b206-9b64f298995d/lesojuxupelituw.pdfIn PDF document text
  • https://pozeduribo.files.wordpress.com/2020/11/bilaporevezawijedegetimoz.pdfIn PDF document text
  • https://s3.amazonaws.com/memul/mesotelioma_seram.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/96a2af6a-13a1-41df-ab58-c469c452af7c/xufatomokawupexazovewu.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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