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://mezovuduw.ru/strik?utm_term=carbs+in+arby%2527s+large+curly+fries PDF link annotation

  • http://lemoxovuv.22web.org/descargar_cheat_engine_para_android_2019.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://59548cc9-d6a6-4b2e-bd73-2bfb7290c7b5.filesusr.com/ugd/3fd21f_ad103aa678cb4d65a7f3ee2bf4060b6c.pdf?index=trueIn PDF document text
  • https://8b5ac0f3-2bc4-49a6-9a99-2541af31b215.filesusr.com/ugd/f2ef67_3b242ffa01034212a371e1d9973a0f8e.pdf?index=trueIn PDF document text
  • https://5b2b9875-3923-4577-9ef6-0527498c95e7.filesusr.com/ugd/4e6dd5_bafc380856894e1cb05fc53bb0c4fa9a.pdf?index=trueIn PDF document text
  • https://dd39d194-9042-494f-90ab-223c96cf8da5.filesusr.com/ugd/5d3909_e472b9857d254c9dbd3402143d666b2f.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/55d7442c-5d02-4ebe-9897-a5ab16883700/is_evolution_a_scientific_law.pdfIn PDF document text
  • https://0ca3454e-05ac-49fc-8d00-644b1af7be3c.filesusr.com/ugd/8bf3fc_6fb30d35cb044049be7ca9e0b70c14ea.pdf?index=trueIn PDF document text
  • https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_d65b1aaf53aa46d993c057189951ef1c.pdf?index=trueIn PDF document text
  • https://160e4e15-e27a-4ef2-9b26-f67fc0969a86.filesusr.com/ugd/cbdbb6_07d1ae54598942c9b4d9726d87744d53.pdf?index=trueIn PDF document text
  • https://50fe66f1-00be-429c-ab6c-57a9f80d6ab9.filesusr.com/ugd/39cb9d_40881bf0817141dda6eff1eb21d33cff.pdf?index=trueIn PDF document text
  • https://41d9b059-0b17-466b-96e6-f31a3f3e9b19.filesusr.com/ugd/f1ead9_2431c1ef96774e5caea02cc05fe95ee5.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/xovekolamoxe/what_colleges_offer_vet_tech_programs_near_me.pdfIn PDF document text
  • http://xatamiv.rf.gd/kositumazipokirajuk.pdfIn PDF document text
  • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_26c9633ad4e54c85a38ea7fd94d89357.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/rizezobabub/kolkata_to_bhutan_tour_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/sefipa/41539314250.pdfIn PDF document text
  • http://marivugedada.epizy.com/ecology_and_society.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d92e2e6-1215-4d9c-9ce5-388a6de76179/mevifametuded.pdfIn PDF document text
  • https://s3.amazonaws.com/jivamubug/ajax_post_body_form-_data.pdfIn PDF document text
  • https://s3.amazonaws.com/kulinisokakewi/landscape_wallpaper_android.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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