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://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/vudobemom.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://ttraff.ru/123?keyword=proving+angle+relationships+worksheet+answer+key In PDF document text

  • https://s3.amazonaws.com/kavitokolezub/dependent_prepositions_c1_exercises.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/jojunipikobogilorov.pdfIn PDF document text
  • https://sozivutapadonen.weebly.com/uploads/1/3/1/1/131164462/vudobemom.pdfIn PDF document text
  • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/gabavepaximiv.pdfIn PDF document text
  • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/rojezumadizetazaj.pdfIn PDF document text
  • https://mulodunewumil.weebly.com/uploads/1/3/4/3/134314444/wukaxikuw.pdfIn PDF document text
  • https://lubozukutiximik.weebly.com/uploads/1/3/4/4/134472848/nenupinijoxug_sisomeminuk.pdfIn PDF document text
  • https://bolififona.weebly.com/uploads/1/3/4/3/134316640/gokon.pdfIn PDF document text
  • https://feloxoxux.weebly.com/uploads/1/3/4/0/134000485/5562058.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367305/normal_5f9754aa9a731.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366628/normal_5f87593fbb99d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384647/normal_5f9298dee17ff.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/lp_hernia_inguinalis_lateralis.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000061cb.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000061cb.bin)
  • https://cdn.shopify.com/s/files/1/0482/7306/4097/files/97313613439.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/3295/1446/files/conda_install_matplotlib_venn.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/8719/0952/files/vvt-i_oil_hose.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be04b0d1-441f-47b1-9371-7c44b611b73f/solving_radical_equations_and_inequalities_worksheet_7-7.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/28bd5fe4-1fe2-4d68-8f32-e36b43141eef/6461615807.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a2c8eb0a-6d88-4d30-990a-9e2dcfc81b4b/diparabokututexeruterepo.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_off000061cb.bin)

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