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
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://dexuwoborusise.weebly.com/uploads/1/3/4/3/134375282/6c50c9af7f8.pdf.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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://jacksth.ru/strik?utm_term=disabled+facebook+account+recovery+without+email PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4378620/normal_5fe0d1344096f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373504/normal_60411b5e98843.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368748/normal_5fc60669139a4.pdfIn PDF document text
  • http://nigemutekilum.mypressonline.com/avancemos_spanish_1_textbook.pdfIn PDF document text
  • http://bikokobolo.sportsontheweb.net/grief_and_loss_cycle.pdfIn PDF document text
  • http://fofolep.mywebcommunity.org/surah_mulk_english_translation_youtube.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369654/normal_601155241e1a6.pdfIn PDF document text
  • https://dexuwoborusise.weebly.com/uploads/1/3/4/3/134375282/6c50c9af7f8.pdfIn PDF document text
  • http://kolegutoravi.mygamesonline.org/bootstrap_4_tutorial_indonesia.pdfIn PDF document text
  • http://zumufufup.sportsontheweb.net/37943151816.pdfIn PDF document text
  • https://fiwenozagor.weebly.com/uploads/1/3/4/3/134363395/merojide_wirogubefu_dovikovevujaxim_nefawulajux.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4426679/normal_5fca207d8e87e.pdfIn PDF document text
  • http://lenugaguv.medianewsonline.com/depenetigafurujom.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4469374/normal_60541344b4623.pdfIn PDF document text
  • https://xibimitavidin.weebly.com/uploads/1/3/1/8/131871740/f1cd5e99fba.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://uploads.strikinglycdn.com/files/496a6b9a-2095-493a-be65-04969407219c/rinnai_wall_heater_instructions.pdfIn PDF document text
  • http://bamonoxo.onlinewebshop.net/boldenona_en_humanos.pdfIn PDF document text
  • http://pabewuvuxaf.onlinewebshop.net/atlas_copco_compressors_houston_tx.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2ca4867f-b241-493c-800d-b0f4d4bf2365/83934024127.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bb5cf4ac-8757-4226-af2d-1ab82cfafdd9/how_to_use_nanami_togarashi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb642442-62a0-4516-90da-3470b2882bf4/does_china_have_a_constitution.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1fa3d4ac-65ce-48d8-aad6-d036dce5ba8e/ridgid_cordless_air_compressor_home_depot.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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