Malicious PDF — malware analysis report

Heuristics 7

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://yafferge.ru/strik?utm_term=used+yamaha+digital+baby+grand+piano In PDF document text

  • https://vadutebo.weebly.com/uploads/1/3/4/8/134889136/3faab9.pdfIn PDF document text
  • https://burogoga.weebly.com/uploads/1/3/2/7/132740280/vitodagimapawibekepi.pdfIn PDF document text
  • https://kasapumaf.weebly.com/uploads/1/3/1/3/131397987/8784692.pdfIn PDF document text
  • https://sizomejuxitiz.weebly.com/uploads/1/3/4/7/134748976/lubulavit_xonulovanuwe_pafikinidedami_waxomuvexo.pdfIn PDF document text
  • https://fifofisepag.weebly.com/uploads/1/3/5/9/135985139/jaduvelupot_xajodomapijewi_loxaxir.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368250/normal_5fd63b1b75b98.pdfIn PDF document text
  • https://jobuvofuwado.weebly.com/uploads/1/3/1/4/131483112/refofid.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4487007/normal_602b0842d9371.pdfIn PDF document text
  • https://rogapunuki.weebly.com/uploads/1/3/4/3/134375427/wekosinevilapababim.pdfIn PDF document text
  • https://wutotopuwa.weebly.com/uploads/1/3/4/4/134464713/guvojerexov-wubinusipemi-tivosa.pdfIn PDF document text
  • https://kamedewogivazu.weebly.com/uploads/1/3/4/0/134096977/feruvupa_kukupe.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408479/normal_604f6ea4a109a.pdfIn PDF document text
  • http://rowowesofazov.medianewsonline.com/88402172423.pdfIn PDF document text
  • http://xonitaj.mywebcommunity.org/words_of_wisdom_for_new_parents_never_let.pdfIn PDF document text
  • https://lowunidedalovel.weebly.com/uploads/1/3/1/3/131380213/sexasozekevo_zadarakawovu_joburelol_moterozenuw.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/5fe88b3a-60c7-4556-8abb-7c21fd54e3b2/formato_apa_6ta_edicion_para_bibliografia.pdfIn PDF document text
  • https://s3.amazonaws.com/godewumazek/logarithmic_equations_worksheet_with_solutions.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dfc65a17-d815-43ab-8e1f-70a05af3e72e/real_heart_drawing_easy.pdfIn PDF document text
  • https://s3.amazonaws.com/sazariwapa/tovaduj.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/972285ee-bccf-4cff-835d-559146a6dee8/good_maths_apps_for_7_year_olds_uk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/283085be-1e71-482c-ae6a-ef69ee258b8b/listado_de_conectores_en_ingles_y_espaol.pdfIn PDF document text
  • https://s3.amazonaws.com/tibanepoxilibud/sobibobakewek.pdfIn PDF document text
  • http://lugenizuridaj.atwebpages.com/natuza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/efac0b03-bfb9-4c73-a9cb-6d5a44961a09/33531912014.pdfIn PDF document text
  • https://s3.amazonaws.com/gifiz/1366149837.pdfIn PDF document text
  • https://s3.amazonaws.com/pazovugal/71798403382.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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