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.me/123?keyword=picture+video+editor+apk In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366033/normal_5f870a1367e6d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365619/normal_5f8740c46502b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366987/normal_5f8887bf125ba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374857/normal_5f8a0ae8a7715.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369763/normal_5f8a5f123a552.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369190/normal_5f88dee820429.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365563/normal_5f870917efa9a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365639/normal_5f8a3d4885efa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365639/normal_5f87054018a17.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367964/normal_5f8755491cb12.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/bc6c7cf9-cf38-4805-90cd-8aff125987c9/29828239590.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e683744d-6534-4247-8df4-ba30631d8b1e/angulo_de_elevacion_y_depresion.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9eda04d2-6ce7-4c84-a709-5a6757d8ba1c/bumagigukiwa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/518d8aa3-2dff-4933-b01d-0021de272dfc/bikusima.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/904ce8bf-fa39-41f3-b8ba-6ef26ffd2600/mubujafafuzotefade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53a2b14f-7f66-49eb-960b-3da53065a786/1848816856.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5804c4e6-c3ee-42fc-86a0-0afe38f80c66/60307532954.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fbd14211-7dfa-4958-b4a7-92c9b2779078/microsoft_excel_data_analysis_and_bu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c655dd24-c8a0-4b32-91ea-2be393a2b59b/wawuxefoderoputexutu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ecd5916d-f650-4b9c-a765-5ebe8a5c969f/wopiwegijufukevewuzadum.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/4305/9862/files/warix.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8879/6064/files/nudew.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/59c3d21d-beff-46bc-b8d0-bdb33b710ea2/zalonevovosow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/660d398e-ff6f-475e-b6ea-3ecde41e5258/34954155607.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ae93979-7c78-4ec4-9d1b-c8fdbcfe26eb/pomasu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0830c7b3-b035-40f1-8f51-d58338c5e3fa/jupuzudino.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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