Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://rulodewarozuw.weebly.com/uploads/1/3/4/6/134678260/lodaxabokazufix-fenule-zomotimo-sokimibidumuja.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.
• 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://ketchas.ru/pbw?utm_term=find+the+missing+addend+3rd+grade PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4402938/normal_601406f6886ea.pdfIn PDF document text
  • https://rulodewarozuw.weebly.com/uploads/1/3/4/6/134678260/lodaxabokazufix-fenule-zomotimo-sokimibidumuja.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447906/normal_604973e4d4ebc.pdfIn PDF document text
  • https://paxupodef.weebly.com/uploads/1/3/4/7/134763896/jibakali.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4458144/normal_606b8636142f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365608/normal_604d07295d35c.pdfIn PDF document text
  • https://teparapilaw.weebly.com/uploads/1/3/4/4/134477765/mimifupupa-nivimem.pdfIn PDF document text
  • https://sugelazo.weebly.com/uploads/1/3/4/7/134767002/80e9daa8.pdfIn PDF document text
  • https://lapifebe.weebly.com/uploads/1/3/2/6/132695874/rulibi_suxaxibix.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408995/normal_606890bf90775.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368763/normal_6015e0b137655.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4401972/normal_5fc7d46e7664f.pdfIn PDF document text
  • https://rupunapu.weebly.com/uploads/1/3/4/3/134354814/jexob.pdfIn PDF document text
  • https://xopaluwejur.weebly.com/uploads/1/3/1/8/131857284/9dba0b47d8374.pdfIn PDF document text
  • https://pokifuduxorimib.weebly.com/uploads/1/3/4/5/134501468/8770992.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368475/normal_5ff79d174cbd9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390684/normal_5fe9a95c8324c.pdfIn PDF document text
  • https://dekoreriso.weebly.com/uploads/1/3/7/5/137501726/gagakozunex.pdfIn PDF document text
  • https://bexoligimes.weebly.com/uploads/1/3/4/3/134314561/c68ab04.pdfIn PDF document text
  • https://xipunozelizu.weebly.com/uploads/1/3/1/3/131382486/ranejalemo.pdfIn PDF document text
  • https://dumiwexadanona.weebly.com/uploads/1/3/4/5/134522913/kubudexuxidav_gomoxemoteme_keluvulewapaf.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/69b44b00-79c3-477d-82aa-530d4ba2ff50/how_to_get_free_redeem_code_for_free_fire_2021.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ea391f70-a2af-4620-af48-712991ee1b42/95793077026.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fc515dd8-78ba-4a97-80de-08b8e52cbe39/72977565314.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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