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://ggtraff.ru/123?keyword=asphalt+nitro+mod+apk+revdl In PDF document text

  • https://site-1038565.mozfiles.com/files/1038565/6203720690.pdfIn PDF document text
  • https://site-1039210.mozfiles.com/files/1039210/55014476057.pdfIn PDF document text
  • https://site-1044306.mozfiles.com/files/1044306/dinuw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365567/normal_5f87744864aba.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366017/normal_5f8703469f9d2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366354/normal_5f873ca7e754e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365621/normal_5f86fc6ccdff8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368477/normal_5f87a4a0e7cf6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368500/normal_5f879c96cf289.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366306/normal_5f871ea30c1a9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365547/normal_5f875068066cb.pdfIn PDF document text
  • https://site-1040084.mozfiles.com/files/1040084/jivaze.pdfIn PDF document text
  • https://site-1039224.mozfiles.com/files/1039224/varelamorelolijomiluxofom.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/1/0437/1464/2070/files/12980724975.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/59403046892.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f8545aff-4f60-41e4-b991-e1c40ec4f96e/letorasi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4894fa98-6c86-4112-ab0d-14d142146741/kojevuk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4e731eee-2b5b-4061-82b8-abfb8ae98ebc/68360511407.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f4f49650-a816-4ce8-89a3-d8a7802d4c0a/jeluz.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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