Malicious PDF — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://trafftec.ru/aws?keyword=counting+unit+cubes+worksheet PDF link annotation

  • https://nivawapononagi.weebly.com/uploads/1/3/4/2/134234681/gulogotetotejukatib.pdfIn PDF document text
  • https://wotigutaz.weebly.com/uploads/1/3/4/3/134361511/taganafixesezadosa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392472/normal_5f8ea0ae356bc.pdfIn PDF document text
  • https://sazunanul.weebly.com/uploads/1/3/4/4/134488017/pozul.pdfIn PDF document text
  • https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/puvigidagakezaw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415756/normal_5f9bd9d9d794e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370064/normal_5f88666ed67a2.pdfIn PDF document text
  • https://zinawadasug.weebly.com/uploads/1/3/4/3/134312837/wonolixawekite.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381105/normal_5f96bd658f58e.pdfIn PDF document text
  • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/kujiwewe.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/4fa47cee-b2fd-4de8-9ff6-0c46c6c38428/36945200236.pdfIn PDF document text
  • https://livanizimof.files.wordpress.com/2020/11/another_world_is_possible_david_mcnally.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7912333c-8dae-4129-a22f-b81f0ac33134/zopisutes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ecb2d2a-d460-4657-9bc6-55d601835ab5/5_de_septiembre_signo_zodiacal.pdfIn PDF document text
  • https://pafegum.files.wordpress.com/2020/11/xumakosokidazok.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eefc2e46-fa14-4dcb-b019-f7751bf2dfdf/controls_and_variables_ppt.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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