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.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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.
• 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=reduce+pdf+size+windows In PDF document text

  • https://cdn-cms.f-static.net/uploads/4372105/normal_5f8c85064189e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366655/normal_5f8d4b9f892fa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4406785/normal_5f966a43a48fd.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4401716/normal_5f92ffe113f47.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375210/normal_5f8b98496d0a1.pdfIn PDF document text
  • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/c02036eab.pdfIn PDF document text
  • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/gipesi_pujivasa_kodezawesukovo.pdfIn PDF document text
  • https://bipinutafo.weebly.com/uploads/1/3/4/3/134358532/zunarunif-vuvudiboga-xidavijafa-maresitox.pdfIn PDF document text
  • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/c6ff656e28f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366311/normal_5f88837e27111.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417308/normal_5f962f95095dc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366042/normal_5f8e23e5c0e62.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370076/normal_5f8a402218e50.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006e27.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006e27.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a24f.bin)
  • https://cdn.shopify.com/s/files/1/0433/5747/0874/files/xutidelubis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5381/7252/files/encuentra_com_portal_catolico.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/9495/7470/files/vinyl_wrap_motorcycle_gas_tank.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/7400/2354/files/dozatemaguzoxate.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b28ee012-4a81-496e-81b5-857b4f381a09/43138453841.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5d92ec35-d0fa-47a1-94a8-2922e735fcc3/94258784159.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/223a92f1-3316-42de-b84b-f6bbce0adc82/kunisate.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/df80631e-4ff2-4c3e-8279-20184b01dcf9/6115247122.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/51d3e10f-d675-48a2-b07e-589ee4c94aae/35632222947.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/ielts_speaking_topics_part_3_with_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/fotojipifuzitul/bharat_petroleum_petrol_pump_dealership_advertisement_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/tigovatolis/13133029309.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 extracted file (font_00_sfnt_off00006e27.bin)

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