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://bologen.ru/strik?utm_term=bowflex+xtreme+se+home+gym+reviews PDF link annotation

  • http://juwupexutaval.mywebcommunity.org/tonofumefinawupes.pdfIn PDF document text
  • http://riwotivadejud.sportsontheweb.net/livejobuwoj.pdfIn PDF document text
  • http://dusanaputojinon.mygamesonline.org/15209731160.pdfIn PDF document text
  • http://boguzimaro.getenjoyment.net/amazing_grace_chords_e.pdfIn PDF document text
  • https://9d76d0c6-5807-43acIn 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/b8dd4a74-6005-4c6e-94c7-2939bc475323/summoning_spirits_in_smash_ultimate.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/600bf31e-1764-47ee-b412-072a2f558c9c/unity_software_stock_ipo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5bb4e1df-0295-47e2-9c53-3f13d5e99246/71004562774.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1f520b0a-e4af-4db5-bade-0ac20db9b0d0/how_to_curl_really_really_short_hair.pdfIn PDF document text
  • https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_9cb7b61cb410488c99e714daeb4ee6ad.pdf?index=trueIn PDF document text
  • http://jumepenitujox.atwebpages.com/86442057649.pdfIn macro / runtime command snippet
  • http://matewedidoxeber.onlinewebshop.net/how_to_start_an_evaluation_essay.pdfIn PDF document text
  • http://pabewuvuxaf.onlinewebshop.net/freestyle_shark_classic_watch_xl.pdfIn PDF document text
  • https://11fe2947-f393-4df3-905d-f9f3730e834a.filesusr.com/ugd/b1b16e_822944f21ac84da7b0ce8802136bf7e0.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/8dc42846-08d0-4e6a-9997-58087c9fe88c/simple_maths_questions_and_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/38505f28-c76e-46e4-810b-3409b4b32fe1/uc_davis_football_parking_map.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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