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.
• 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.
• 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://zajinet.ru/strik?utm_term=taotao+300cc+atv+reviews PDF link annotation

  • http://mosuxuvemuzuwex.mywebcommunity.org/28446489225.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4423732/normal_6013a05aa0f3f.pdfIn PDF document text
  • http://linefofaxugedu.mywebcommunity.org/rutherford_backscattering_spectrometry.pdfIn PDF document text
  • http://xemakaze.mywebcommunity.org/3160845566.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4483856/normal_602a70e02082b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4470837/normal_6017108dcf013.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/a9ded645-4204-467e-89fd-44318928cbf0/64665084365.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9cfd0863-47a3-4105-9134-b6fc1b9f57d0/ruxubogajufikajijuwexi.pdfIn PDF document text
  • https://05efeaee-ea5b-4dc8-bddc-a5098cc0dcbd.filesusr.com/ugd/c06c30_e65d60a13bc34a5cbdb55948620144da.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/lekizopiloref/plataformas_de_busqueda_de_empleo_colombia.pdfIn PDF document text
  • https://d1b33a7b-cde1-45d4-bc15-d4d3b6236ac5.filesusr.com/ugd/1d64af_6b893c11c6ce452eb4b7da0b59fb7137.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/satudifin/96866373844.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fae6058d-1345-4bc5-81e2-5f7903bcb161/2005_chevy_silverado_service_4wd_light.pdfIn PDF document text
  • https://s3.amazonaws.com/musokejixami/zewuxorenitev.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b0cb4830-f862-4c50-a896-e5a8647d1f81/rain_dial_controller_manual.pdfIn PDF document text
  • https://ebcfae26-b4e4-4f1a-a5b2-c5bdbddc1bdf.filesusr.com/ugd/259f90_6bf4a62247ab44b1aac23095ce02c25e.pdf?index=trueIn PDF document text
  • http://witesenigo.atwebpages.com/dovusobu.pdfIn PDF document text
  • https://s3.amazonaws.com/zifilobesumafi/faxidigotixonodemelovon.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49aab53d-8ea2-4a37-9fa1-b150b937a3ed/trane_xr12_air_conditioner_reset_button.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0e16682a-ece4-4d54-acda-a438d8f92d37/levek.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/798ff05d-09d0-46ef-bd23-d51ad2ed1e0c/dugemazewube.pdfIn PDF document text
  • https://23fe9111-5aa3-4288-b7a4-a84c242bb647.filesusr.com/ugd/d35b85_24194cc1afaa4b20859d92ed23c662ac.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/904091b6-2a0e-4203-b554-469b60f95be7/99895009249.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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