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://traffking.ru/aws?keyword=gift+deed+nm In PDF document text

  • https://cdn-cms.f-static.net/uploads/4485329/normal_5fa74c963d349.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365583/normal_5f871d1e6b923.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382617/normal_5f8bd51a18510.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367950/normal_5f8e50871b3b6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416304/normal_5fa05dcf91bbd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367668/normal_5f8bc574b77b9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4421637/normal_5fa39e66b6912.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410674/normal_5f93bd25c0c7c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388612/normal_5fa3c36705918.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/481842d0-af0d-4489-8639-7ff637e719a4/51388712721.pdfIn PDF document text
  • https://gedixofopiwa.files.wordpress.com/2020/11/c63_amg_review.pdfIn PDF document text
  • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/57057903089.pdfIn PDF document text
  • https://s3.amazonaws.com/nefagolom/46613794596.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ccaaab8a-8e29-4d6c-acdc-564aa640e726/drive_thru_wedding_tennessee.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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