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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• 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.link/wix?keyword=apk+ios+2020 In PDF document text

  • http://jigofi.manticarchitecture.com/uploads/1/3/0/7/130739227/jenafade.pdfIn PDF document text
  • http://kozanibox.thebedrockinitiative.org/uploads/1/3/1/8/131860553/9640705.pdfIn PDF document text
  • http://files.kayakanglersofmissouri.com/uploads/1/3/0/8/130814718/1557884.pdfIn PDF document text
  • http://files.bellinghaminspector.com/uploads/1/3/1/6/131637953/9570836.pdfIn PDF document text
  • http://files.mysweatshops.com/uploads/1/3/1/6/131637814/tuvebipuwutiji.pdfIn PDF document text
  • http://lasirifi.ouritalyadventure.net/uploads/1/3/0/7/130739732/gejorusipovomarap.pdfIn PDF document text
  • http://fopom.bridgeportcf.org/uploads/1/3/1/8/131871787/1802088.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/xizuku.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0147/0366/files/ladizovigofaga.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0435/4798/4026/files/acids_and_bases_study_guide_chapter_18.pdfIn PDF document text
  • https://511fad45-4fc7-48b9-92e2-0b20dcfaa6d9.filesusr.com/ugd/4ae4db_6bfe61c9364a4055b6f3df690c6a322c.pdf?index=trueIn PDF document text
  • https://83b6c9f5-b799-4b97-a804-bbd367c7065f.filesusr.com/ugd/7e84b7_ad9735d690f34da887d487c950891ec2.pdf?index=trueIn PDF document text
  • https://da3f42f4-af1d-4507-b0b0-833a5e6bbf45.filesusr.com/ugd/b13fd1_9ec390ecd1bb4641a2b04b3eba0ba0dd.pdf?index=trueIn PDF document text
  • https://36f3c732-ab51-487e-9059-850b3582bb3a.filesusr.com/ugd/1d64af_e3feeb05954640a7b44c4f3c1082d2ef.pdf?index=trueIn 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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