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
• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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.
• 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://yafferge.ru/strik?utm_term=junqueira+histolog%25C3%25ADa+pdf+online In PDF document text

  • https://cdn-cms.f-static.net/uploads/4484631/normal_602adfbd6b1ef.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4484818/normal_600398a330b57.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4487906/normal_60595a5691a7b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4454436/normal_602b4fafba577.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4494452/normal_600c559f3ae2d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4394061/normal_601bb33c9320a.pdfIn PDF document text
  • https://xusezazidajitov.weebly.com/uploads/1/3/5/3/135325201/b7784983af47a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446507/normal_600ad6048f7d1.pdfIn PDF document text
  • https://labadejasif.weebly.com/uploads/1/3/4/7/134718281/fubipepel-jezibifu.pdfIn PDF document text
  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/nusenatov.pdfIn PDF document text
  • https://zitipijasidigor.weebly.com/uploads/1/3/0/8/130874434/betivujelekip.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4481163/normal_5ffc1bdd2ed4b.pdfIn PDF document text
  • https://gubetixe.weebly.com/uploads/1/3/4/3/134314982/3223991.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/fbb43985-63ef-484e-a7bd-88a6af9bbd70/13748103117.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/254aca30-af34-4305-b179-b53a4944b20f/76854744560.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/94e7fc19-9be7-4512-90c6-38c089d260f1/42423323594.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c7a76849-566b-411f-9db0-6e0e2d820036/operaciones_combinadas_con_fracciones_y_potencias_1_eso.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ae7a250d-351d-4acd-ae86-3fa9f1ee9dae/tidiruvo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6c9353c5-ee8f-499e-8512-be1e39cecce1/robert_greene_mastery_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39274084-27bf-4a3f-872f-397f152d39a5/dd_wrt_download_manager.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e7fc4edd-daa4-4f63-bbcb-fa7fed06ab96/craftsman_5hp_chipper_shredder_price.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0c751f4a-02d3-4870-965a-b26cae49f878/samsung_refrigerator_rs261mdwp_freezer_not_working.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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