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
• 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.
• 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.
• 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/wb?keyword=what%20machines%20to%20use%20at%20the%20gym%20for%20abs In PDF document text

  • https://cdn.sqhk.co/besiwowegin/ZKghgeP/homemade_wood_projects_for_christmas_gifts.pdfIn PDF document text
  • https://cdn.sqhk.co/vinasujitupe/ijZLmJF/28412997531.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490122/normal_601f30b9d6a34.pdfIn PDF document text
  • http://kitafoged.medianewsonline.com/wizukus.pdfIn macro / runtime command snippet
  • https://juziwujaxizeze.weebly.com/uploads/1/3/4/6/134685910/1175876.pdfIn PDF document text
  • http://jedilinosur.mywebcommunity.org/ruger_p95_custom_grips.pdfIn PDF document text
  • https://purotuduveb.weebly.com/uploads/1/3/0/7/130738796/jiwinifuvupanu_maxixixes_polegerepimodan_mokejob.pdfIn PDF document text
  • https://cdn.sqhk.co/xurajalijok/ibibhhC/24574170874.pdfIn PDF document text
  • http://davupopebuwiser.sportsontheweb.net/88636066029.pdfIn PDF document text
  • https://cdn.sqhk.co/dixejetafap/ijKXghi/basketball_games_yesterday_time.pdfIn PDF document text
  • https://cdn.sqhk.co/zarifabidit/WvGZ8gj/xikanabikerulagipofuto.pdfIn PDF document text
  • https://tafevivif.weebly.com/uploads/1/3/2/6/132682704/f6071c205c23a.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4369315/normal_5ff658ec922b0.pdfIn PDF document text
  • https://walamezer.weebly.com/uploads/1/3/0/7/130740591/pijixabopasosipuz.pdfIn PDF document text
  • https://cdn.sqhk.co/dokukavifig/VgdGhex/67245769687.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/In macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://wulibazosuxib.onlinewebshop.net/windows_8.1_enable_powershell_scripts.pdfIn PDF document text
  • https://s3.amazonaws.com/mijumomub/binder_cover_insert_template_free.pdfIn macro / runtime command snippet
  • https://s3.amazonaws.com/lebejos/88568013495.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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