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.club/pify?keyword=cortana+apk+lollipop In PDF document text

  • http://files.riveterlaw.com/uploads/1/3/1/6/131636988/77a5768.pdfIn PDF document text
  • http://files.naturalnat.com.au/uploads/1/3/1/3/131379343/paxewil.pdfIn PDF document text
  • http://files.andreawelsh.com/uploads/1/3/1/3/131379477/4205137.pdfIn PDF document text
  • http://musifiz.goreybypass.com/uploads/1/3/1/6/131606490/41f19afcea6.pdfIn PDF document text
  • http://files.healerjbonnie.com/uploads/1/3/1/4/131437107/4754808248c39d.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://static.usrfiles.com/ugd/b0b521_239eb1ed36bf42cfbf7320ba3d10806d.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/b8c837_9fd49c83dee04e82a9ad8695ef5cdc45.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/4dd980_5672a1c98cef4a1c894208466d5a0612.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/5926b4_c31410c190784c04aa01bc7ab3bfcf30.pdfIn PDF document text
  • https://static.usrfiles.com/ugd/7041e4_c13d7c75d15f4551839b740aecf00d79.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0465/3953/8582/files/tudes.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/6193/6290/files/audio_video_mixer_software_for_pc.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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