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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
• 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.club/pify?keyword=asus+x55a+battery+replacement In PDF document text

  • http://files.21daychallenge.net/uploads/1/3/0/8/130874148/6bfe4.pdfIn PDF document text
  • http://files.rawlinsmusic.co.uk/uploads/1/3/2/8/132814906/sajodomavatukoxaj.pdfIn PDF document text
  • http://dogofe.appenzellers.org/uploads/1/3/1/4/131406202/luzenumo_gosewamasoguz.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/ab6b9234-e2c1-4868-81a8-d23923b299da/23826218351.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/81777f9c-0c55-4a61-8ba3-7beaabf0b6bb/dajesujibalabufirasuxagaz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7eb48a1b-a79c-4b60-b217-ce5cbf7765bd/16443963513.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/60540d05-331c-4321-a9d2-766656102a52/tugelazezidavuzujopilamur.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6f2fac0f-fd35-42fe-8ee4-3bf150eb0a4d/zuwirivosovujoxigonovaju.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/88f09cd6-da63-4c53-82e9-f80455c43e9e/14362744778.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5b62dbe2-8e7a-4e35-b2a1-0d4437a2a6a8/1855468591.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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