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://naxovemunozi.weebly.com/uploads/1/3/5/9/135958864/8323889.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://leonvi.ru/strik?utm_term=how+do+i+reset+my+samsung+tablet+ce0168 PDF link annotation

  • https://naxovemunozi.weebly.com/uploads/1/3/5/9/135958864/8323889.pdfIn PDF document text
  • https://bivufinemena.weebly.com/uploads/1/3/1/3/131380184/gizowipobowigaled.pdfIn PDF document text
  • http://lnstagram-office.com/zomirelixiluzumdkxsa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4401972/normal_5fc7d516a47e3.pdfIn PDF document text
  • https://xisuviwilizej.weebly.com/uploads/1/3/4/3/134320176/ruxozuka.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4378157/normal_60046d0e6bf8f.pdfIn PDF document text
  • https://jamelowo.weebly.com/uploads/1/3/1/6/131606155/1652023.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380219/normal_6069e71187e59.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413838/normal_604a88dfe7cc0.pdfIn PDF document text
  • http://xteenware.online/36052525967mkjfw.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4403429/normal_60293aac07a9f.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/desenaz/laviniveg.pdfIn PDF document text
  • https://s3.amazonaws.com/risalenefazozo/begebefowutupokixitinubof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0aefc0a3-064b-41fa-983d-10cc9a17109e/what_is_college_101_class.pdfIn PDF document text
  • https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_76b63e7a4cee46dbb11dc447c3c5ec84.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e53f3b6-64ad-4a66-9a4d-250d512a3354/tabla_de_equivalencia_de_unidades_del_sistema_ingles.pdfIn PDF document text
  • https://s3.amazonaws.com/toguvaju/bamufexigulonarak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5e0b1d88-eb70-433d-8ac5-de2c7f4e8e7e/graco_pack_n_play_care_suite_playard_target.pdfIn PDF document text
  • https://65f7c47b-6fa2-4aed-9649-637438a88329.filesusr.com/ugd/8fb471_b6c4b8fa76694a2485a4c6f154684203.pdf?index=trueIn PDF document text
  • https://forums.androidcentral.com/showthread.php?t=685054&s=7889829f8fc6f3c56cf03dd1eb33753bIn 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
  • https://forums.androidcentral.com/showthread.php?t=685054&s=7889829f8fc6f3c56cf03dd1eb33753bIn 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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