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://nipisod.ru/strik?utm_term=how+to+list+drive+letters+in+cmd PDF link annotation

  • https://jagaruwej.weebly.com/uploads/1/3/0/8/130874180/lixavolujuvonener.pdfIn macro / runtime command snippet
  • https://cdn.sqhk.co/jevikepuja/H1Sjjgg/woxuwomiwixuji.pdfIn PDF document text
  • https://mafoxoluz.weebly.com/uploads/1/3/1/4/131483222/linugilawuzizo.pdfIn PDF document text
  • https://cdn.sqhk.co/kefesizo/Smgeygi/vimekififoseruzelugoket.pdfIn PDF document text
  • http://rubewox.sportsontheweb.net/81365637323.pdfIn PDF document text
  • https://cdn.sqhk.co/niripakexad/fjdgiG5/rorekutipudesomage.pdfIn PDF document text
  • https://vatovuturok.weebly.com/uploads/1/3/1/8/131856009/dafe1d2fb55.pdfIn PDF document text
  • https://cdn.sqhk.co/texekikevow/jK2lRii/diagnosis_of_ischemic_stroke.pdfIn PDF document text
  • https://rodifeganugupi.weebly.com/uploads/1/3/2/8/132815003/1390062.pdfIn PDF document text
  • https://cdn.sqhk.co/bomumuxa/ehbS9fo/hitman_sniper_game_download_for_pc.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://xujided.onlinewebshop.net/86340255121.pdfIn PDF document text
  • https://57fc24c6-ba7c-430a-bdae-05304608b610.filesusr.com/ugd/bc9c68_3e448ee0676c4353a4caddb9652495ca.pdf?index=trueIn PDF document text
  • https://1628ddcf-e301-416d-9649-d9339b85441b.filesusr.com/ugd/0b1079_75d29b18a3884ab6bf1d979c3a7699a2.pdf?index=trueIn PDF document text
  • https://5c839259-519f-4cee-a1a2-6639d654070b.filesusr.com/ugd/140efa_71a47307116c450985914824b5cb34e8.pdf?index=trueIn PDF document text
  • https://a68e2ff5-bf17-48e3-82d4-ceb975b85758.filesusr.com/ugd/760101_8b8f36d715d64c8b8686979bb5da8d16.pdf?index=trueIn PDF document text
  • https://48e4e0df-78ce-4736-8797-27735e68dc67.filesusr.com/ugd/f3b179_3d32a64f95344c3f91ceeedbba8a703d.pdf?index=trueIn PDF document text
  • https://535f918c-e50e-4760-9dbe-4b22a9cc1357.filesusr.com/ugd/65883d_76d067d42e9d48c989fc53455589afa2.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/fddeec42-c411-452a-8817-80d6632585e9/xinixigurixesam.pdfIn PDF document text
  • http://wulibazosuxib.onlinewebshop.net/taxenigekixozukin.pdfIn PDF document text
  • http://litorow.myartsonline.com/vedic_astrology_books_free.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dab29e70-ab02-4b4a-b603-129e23eafac2/32842221133.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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