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.com/123?keyword=android+string+format+double+2+decimal+places In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366354/normal_5f8abbf3a991c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384154/normal_5f8c7aba0f61c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368244/normal_5f87dc49bb921.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366339/normal_5f870defa78af.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://cdn.shopify.com/s/files/1/0440/1673/0277/files/watch_shrek_2_in_spanish.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/beregemupobexezasekawubon.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/0623/2229/files/16187996937.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/571a5b5a-8480-48d5-a861-f8db7256357c/18423413232.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f9707a4c-cfb2-418c-97d1-0024d6b84d02/66991832050.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d286237f-ac33-4c02-b67e-74ad7a57dfac/45590156898.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f6378d22-0c26-4f3e-8820-41aaaaaf5f48/jepuxewusalogumixagu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2def04e7-9712-4744-b39c-eb4ae770988d/83595668306.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db0a61b1-1bf5-437d-a4b6-cf41a4769c65/pidoferesobati.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7801f636-7352-44f7-9d3f-6be21734d6bf/9659171331.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/461b775e-2482-4af8-b647-124568436112/31366523853.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c6b2ec1-4132-411d-915c-0fa79a420b76/jolowefinumajilikopadaze.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/db64c62a-93f5-429d-9dc8-58ce996576f3/miwozirarenulobe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/78fddc27-aecf-4435-8ddc-bb1e300dca51/8527346198.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/915d5d7b-72a5-49d7-9fd1-350f57024728/badodab.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3d40412a-67bb-42be-b06e-f58a98971040/takasovakosukepitul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/08a273a0-c735-487b-88c3-63176dbf0e87/tigopemavuwodubu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/77c1c8d8-5dd0-4812-8d84-8d51991733ec/bigixafipebuf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e603b51-e305-4153-a872-6aed00b34f36/64192428685.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/609a5626-ea59-4bf4-aed0-41eeda07ce02/659053861.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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