Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://bologen.ru/wix?keyword=magic+potion+terraria PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4446776/normal_60102b0327c47.pdfIn PDF document text
  • https://cdn.sqhk.co/litalile/hgjsEDX/mynba2k20_app_head_scan.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370302/normal_601ec099bca39.pdfIn PDF document text
  • http://slmit.space/dynamixel_xl-_320_alternativefgfyp.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4470533/normal_60099e71ee413.pdfIn PDF document text
  • http://hydra.moscow/google_sheets_importrange_vlookupz1j2h.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4418747/normal_5ff2572accfea.pdfIn PDF document text
  • https://cdn.sqhk.co/zokelofid/ggiagdu/cardiograph_heart_rate_monitor_app.pdfIn PDF document text
  • https://fubapisa.weebly.com/uploads/1/3/1/4/131406294/688665.pdfIn PDF document text
  • https://cdn.sqhk.co/mafowixodi/jidhche/getorojidobuzesajun.pdfIn PDF document text
  • https://cdn.sqhk.co/lewiwifo/jpMygi5/pixel_fighter_zombie_war.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416669/normal_60132bf797c34.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4470980/normal_6004f983cfd1a.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
  • 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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