Malicious PDF — malware analysis report

Heuristics 6

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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/123?keyword=adb+android+install+linux In PDF document text

  • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/7b0bb45c0.pdfIn PDF document text
  • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/d33a4a57.pdfIn PDF document text
  • https://vidojibirulon.weebly.com/uploads/1/3/1/0/131070792/pogovezalovakog.pdfIn PDF document text
  • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/2740515.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366377/normal_5f8744a125c94.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f873dd064682.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365607/normal_5f8709a06bd18.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/463f56d2-6ed1-420c-b208-20563851133f/kedoko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e53386ec-857d-449f-9eaf-601db21e5c91/kijiramizujo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/398ae141-4e27-47d1-8fbc-8b093388e82f/lebazanofulogamipow.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d4f536f1-3433-4d81-8a8b-b3b31c8fc93e/il_battello_a_vapore_libri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/77d22ddf-41da-48f7-a108-d18387aad1cf/7703040188.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/216833af-5fb6-4913-b0a5-a9afc7e8f9eb/kimifukozifoze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df09c845-1040-40c4-8734-2e5b1442b7ad/5294256005.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/tajufoze.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0428/8331/7926/files/cafeteira_cadence_single_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/wanukujari.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/7781/4422/files/rugisumugomuwex.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/0859/6900/files/tipuj.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/7464/7732/files/furizeto.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/9634/1153/files/pawidominoremeb.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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