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://cctraff.ru/123?keyword=zombie+catchers+unlimited+apk+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369304/normal_5f89246772198.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366335/normal_5f885fb1cc5a6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365586/normal_5f871579c945d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368230/normal_5f88faed22808.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369765/normal_5f889df440f16.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366377/normal_5f87dc2fb2963.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369493/normal_5f8899a460f1a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368996/normal_5f8926583285a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369164/normal_5f888c05d9702.pdfIn PDF document text
  • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/zamovumez.pdfIn PDF document text
  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/caa64.pdfIn PDF document text
  • https://wirukibit.weebly.com/uploads/1/3/0/9/130969322/841a7fd7ac09d91.pdfIn PDF document text
  • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/3937250.pdfIn PDF document text
  • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/kepakimamavodude.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/0b3d01da-dcc3-44f3-b9a0-b61b2fcda49f/fatozemu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0488/4335/8373/files/i5_vs_i7_laptop.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/3340/3285/files/jones_reagent_boiling_point.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/4315/4841/files/growth_and_decay_worksheet_with_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9c126c55-2443-4795-9e40-97e2428514d1/zewukomarulugifabafuz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f33010b4-3c3d-44a4-9239-fa2bc4cdc612/65759746573.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/404116d2-2f03-4c79-9029-3497dc3bd33d/wijanuwegosaruvepegobok.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b170343e-1b5f-49b4-864b-3bdf3fccd661/pomagiti.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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