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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdf.
• 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://ggtraff.ru/strik?keyword=paleolithic+vs+neolithic+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4366659/normal_5f87300e82600.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f8753044b2c6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365636/normal_5f86fc7b0ec9b.pdfIn PDF document text
  • https://site-1039952.mozfiles.com/files/1039952/73816025560.pdfIn PDF document text
  • https://site-1042554.mozfiles.com/files/1042554/7907183505.pdfIn PDF document text
  • https://site-1040097.mozfiles.com/files/1040097/93368368018.pdfIn PDF document text
  • https://site-1040675.mozfiles.com/files/1040675/kuxuligo.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
  • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/5595048.pdfIn PDF document text
  • https://wuvirinofibugiz.weebly.com/uploads/1/3/1/0/131070402/nodomiw_ditikerox_sixodipigoda_tupujolapaponog.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005cbc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005cbc.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00008fe3.bin)
  • https://uploads.strikinglycdn.com/files/b8c3421f-42ea-4a60-857d-d21bce102239/xofalubekana.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a000d9af-5247-46b8-ae97-a7a54a0320ca/16644254778.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/99f6cbca-e252-4070-ab44-7c93be63555c/63342495940.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf1c1aa0-ec22-4808-9dc8-e5ee61013589/1773075127.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73e2afe4-a630-450c-9c96-7045b7e3e6c5/wofoxipajuvibisanemijela.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/7368/3100/files/78909627197.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/5832/6435/files/15928540213.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/1103/5295/files/71390911901.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/8070/3382/files/48701467609.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0482/6726/4164/files/cualidades_y_defectos_de_una_persona.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/0364/1507/files/lifabifawonepu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/40309577575.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_off00005cbc.bin)

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