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://traffset.ru/aws?keyword=super+castlevania+4+rom+download PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4426072/normal_5f9ca1a08d5ed.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/f45658a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367268/normal_5f89cad60b821.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420906/normal_5f9967423e288.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393763/normal_5f90402842736.pdfIn PDF document text
  • https://rofetavagamufup.weebly.com/uploads/1/3/4/3/134373504/zulajonanit_xanedakuvu_jisuzadovugunug.pdfIn PDF document text
  • https://palobakuk.weebly.com/uploads/1/3/4/5/134523632/nejaleniwapoxo.pdfIn PDF document text
  • https://vutizimowunofe.weebly.com/uploads/1/3/4/3/134354130/ded14.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/957720e7-1c8b-485f-ab0f-ac70a59f49f7/davamaxowekigozu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c1e583cc-d027-4023-a4ad-787e5b714abe/18109593507.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0d549ffe-8995-4856-861f-d214656d1ce3/john_deere_2020_fuel_injector_pump_priming.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3be075ed-7d75-44c2-b2b4-df896b1259e9/sumber_daya_manusia_buku.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/31cbc821-594b-427b-9077-08381ad8ce5b/terapia_psicodinamica_de_grupos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f97202a-c42b-4a10-9674-7ac01f3270ed/lizonu.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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