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://ttraff.cc/123?keyword=a+wife+and+a+mother+apk+latest+version In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367300/normal_5f8fab9d0c5cf.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383704/normal_5f8f17e738928.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417669/normal_5f9aed50e512d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366306/normal_5f870f28a2334.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367937/normal_5f91f7e2c4338.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386609/normal_5f8d318d4a1e9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365642/normal_5f8705f2efd53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391015/normal_5f90ab42efa47.pdfIn PDF document text
  • https://sakixuso.weebly.com/uploads/1/3/4/4/134488330/bosevejerumup_senile.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385235/normal_5f919489aa748.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/0bb7406e-0ad6-4fe2-b74b-cf6366ddfaa8/51504851316.pdfIn PDF document text
  • https://s3.amazonaws.com/piwupevivotixi/tazamizulutufu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc094473-3b89-4260-aeb5-1cb879edf707/southern_high_school_new_jersey.pdfIn PDF document text
  • https://s3.amazonaws.com/megelugik/6164236977.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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