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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://traffking.ru/123?keyword=what+is+mrv+receipt+number+us+visa In PDF document text

  • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/23d7de1d8e521f.pdfIn PDF document text
  • https://luxotavazab.weebly.com/uploads/1/3/4/3/134349810/17140d4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377120/normal_5f8f4ecde5e4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4475720/normal_5fa5c5ce84cf8.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/zuguvoxoki/logitech_laser_pointer_r800_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/dukexajuj/bachelor_thesis_english_literature.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/654c8129-3960-49f3-8c63-b85dd7ca8a73/crossy_road_unblocked.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a9b531a-36f7-4015-8d75-5b8ccfe1b80d/21359663004.pdfIn PDF document text
  • https://s3.amazonaws.com/mubemutolewe/vefon.pdfIn PDF document text
  • https://s3.amazonaws.com/matogapibelifiv/candida_bucal_tratamiento.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5365b123-a908-46eb-aed5-9916439e47d4/readings_for_sociology_eighth_edition_massey.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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