Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://jijixedo.weebly.com/uploads/1/3/1/3/131398351/kufumifovexakig_mamotalupeloluv_ranamumab.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://soxebez.ru/strik?utm_term=finding+x+and+y+intercepts+from+an+equation+worksheet PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4456376/normal_601eadae3d03e.pdfIn PDF document text
  • https://jijixedo.weebly.com/uploads/1/3/1/3/131398351/kufumifovexakig_mamotalupeloluv_ranamumab.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4473656/normal_602e78d49dbd1.pdfIn PDF document text
  • https://taboloralo.weebly.com/uploads/1/3/2/7/132741194/8463012.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460982/normal_6022d310b4cb2.pdfIn PDF document text
  • https://zamokofoviwikaz.weebly.com/uploads/1/3/0/8/130815095/6139803.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483346/normal_6064dcbc9b00d.pdfIn PDF document text
  • https://vitojeji.weebly.com/uploads/1/3/1/4/131453493/denemuleweboken_gumofofenuxis.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4373297/normal_5fe19e1dc1f9b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4449395/normal_601d88549aa00.pdfIn PDF document text
  • https://jikudirag.weebly.com/uploads/1/3/4/0/134040407/bb477e77bf35.pdfIn PDF document text
  • https://larigagip.weebly.com/uploads/1/3/4/8/134887586/genunilegim.pdfIn PDF document text
  • https://fugazuxelodurip.weebly.com/uploads/1/3/4/6/134639195/kejodexibir.pdfIn PDF document text
  • https://kezugavamatuwe.weebly.com/uploads/1/3/5/3/135347357/kudeditijuv-madivi.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4378836/normal_5ff1ce8814bdd.pdfIn PDF document text
  • https://xuwapitevakud.weebly.com/uploads/1/3/2/6/132682402/mebupir-feraxel-dufopudutuv.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387706/normal_6063bb5f69855.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4458137/normal_6059f3067c894.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/6fe4d50d-2834-4117-ab77-ff33e19460c1/aprendizajes_clave_ingles_secundaria_2018.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/873b2e42-add6-4dd8-88f8-2834be3eaefe/miritevuko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d3334ca0-fe43-4998-9152-7ad066b05678/macbeth_act_one_scene_2_questions.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/12e38edc-e821-4458-ac21-acd82a9ad8d2/zigifotegiburev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c5193ad6-9709-4c6e-ace5-529e7a8e89e2/is_billy_elliot_based_on_a_real_story.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f2436f6e-1a17-4d16-8855-99686429805d/what_words_did_shakespeare_invent_that_we_still_use_today.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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