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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://pelibifir.ru/123?utm_term=bwr+pro+apk PDF link annotation

  • https://xelemuzeb.weebly.com/uploads/1/3/7/5/137501053/3376839.pdfIn PDF document text
  • https://static.s123-cdn-static-d.com/uploads/4478951/normal_60aff99cc8f5b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447888/normal_6027df6650e66.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446790/normal_600a53af1fcab.pdfIn PDF document text
  • https://mufobaxepomek.weebly.com/uploads/1/3/4/8/134866816/1356747.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4474446/normal_606e44811545f.pdfIn PDF document text
  • https://butebipibib.weebly.com/uploads/1/3/4/2/134265815/vilanotubukiz.pdfIn PDF document text
  • https://nunubawuguxage.weebly.com/uploads/1/3/7/5/137504951/kamixu.pdfIn PDF document text
  • https://xuwudobuxu.weebly.com/uploads/1/3/2/6/132682441/wenojogewib.pdfIn PDF document text
  • https://nunubawuguxage.weebIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/4f4e03c4-ca88-4e4d-bf32-3457ca68b5c9/xizurelobaweruwolo.pdfIn PDF document text
  • http://gipovowi.pbworks.com/w/file/fetch/144839814/mumoge.pdfIn PDF document text
  • http://fuxotatizexu.pbworks.com/w/file/fetch/144574113/ovid_metamorphoses_book_10.pdfIn PDF document text
  • http://faxamom.pbworks.com/w/file/fetch/145022760/vozobagikoxofisepalilu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d8d73fd-94f9-49af-8d88-33fb5ea8584c/como_hacer_la_conversion_de_pulgadas_a_milimetros.pdfIn PDF document text
  • http://gulisapil.pbworks.com/f/how_to_write_daily_progress_report.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f9eca60a-80a7-4114-b742-28e6d03113b8/rimitelikuzubunanasevipo.pdfIn PDF document text
  • http://kegujomojos.pbworks.com/f/star_wars_babu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/73429aea-0999-4e4f-95f4-1083f2b64fdf/what_is_the_average_cost_of_prescription_safety_glasses.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/de2757d2-01af-413d-9bec-7c994a5bfca0/rip_curl_watch_repairs_australia.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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