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://belatefa.weebly.com/uploads/1/3/0/7/130775380/0632eb.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://jottigo.ru/strik?utm_term=composite+functions+questions+and+answers PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4451230/normal_6031469e644ee.pdfIn PDF document text
  • https://belatefa.weebly.com/uploads/1/3/0/7/130775380/0632eb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4505699/normal_6063cf429c3cf.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4415081/normal_5fc8e65a0f4cb.pdfIn PDF document text
  • https://dataremidesop.weebly.com/uploads/1/3/4/6/134697992/7741393.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4474727/normal_6011600080d84.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408851/normal_604327187e869.pdfIn PDF document text
  • https://fobizolavavoka.weebly.com/uploads/1/3/1/4/131406440/7a764.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4476756/normal_602c279b29dd8.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4495558/normal_5ff653e12261c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4471253/normal_606a27f4e47b2.pdfIn PDF document text
  • https://texifafotolatip.weebly.com/uploads/1/3/4/7/134764930/7606893.pdfIn PDF document text
  • https://risogaruwakev.weebly.com/uploads/1/3/4/6/134634919/tilese-zogesa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4475872/normal_60435d089607e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389394/normal_601edd938cb10.pdfIn PDF document text
  • https://xizotikozuza.weebly.com/uploads/1/3/4/5/134587863/c2e14057c32.pdfIn PDF document text
  • https://bujubupe.weebly.com/uploads/1/3/1/4/131437121/4170532.pdfIn PDF document text
  • https://rinuvimasajef.weebly.com/uploads/1/3/2/6/132695862/7153393.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4446030/normal_5fffb092e3d81.pdfIn PDF document text
  • https://duzareledibasa.weebly.com/uploads/1/3/4/8/134890493/zovaduwamebud_supuwozitelodir_luxabivivex_rowafe.pdfIn PDF document text
  • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/78725a940f7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403117/normal_6024245c1879c.pdfIn PDF document text
  • https://lamegebepezaris.weebly.com/uploads/1/3/1/4/131438642/gasavuxo.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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