Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://xajibur.ru/123?utm_term=articulate+storyline+2++free PDF link annotation

  • http://saxosoxajivovud.medianewsonline.com/beam_bending_formulas.pdfIn PDF document text
  • http://faxadiweruxu.22web.org/selected_homme_trousers_size_guide.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4462073/normal_6012ce57440cd.pdfIn PDF document text
  • http://pegejoruvufiron.sportsontheweb.net/pugekivek.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4471509/normal_605df29357478.pdfIn PDF document text
  • http://penafur.scienceontheweb.net/neet_answer_sheet_format.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446765/normal_60565622a374e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4408704/normal_6068b6ab8a22d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4386848/normal_6038fabe5a20d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4498678/normal_602dd40b9eb3f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4486742/normal_60615e28c1d45.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/4294bd28-735d-46f2-813b-ddce80f4f801/vunubakakuzitabile.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb4c470c-922e-4677-8e0e-923362201022/simple_english_proverbs_with_tamil_meaning.pdfIn PDF document text
  • https://0a38098d-26c8-4844-ab0b-2dfc398d7f8d.filesusr.com/ugd/fffd55_11f55ad920564c84a0c0f746c8efc985.pdf?index=trueIn PDF document text
  • https://52431b39-7396-4b0c-bcaf-ab72d449a1bf.filesusr.com/ugd/f8cef3_53aaeb3db6d24c6f8a3e3594662f0fba.pdf?index=trueIn PDF document text
  • http://rovuwuruw.epizy.com/33566884948.pdfIn PDF document text
  • https://ae8c1479-5121-4009-b0ed-8259dbb1205b.filesusr.com/ugd/0aff45_ed61c273933840e6aa2b3b2e270672b3.pdf?index=trueIn PDF document text
  • https://79ab8074-8148-4faa-9219-f6cdfa35bc15.filesusr.com/ugd/99e004_a7d22c0c29c74021abd5d68f453f97ea.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/44a91250-8caa-4cc3-abd5-db3dafe34534/how_to_start_up_a_central_boiler.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a645a843-ed33-41d6-9fa9-defd69dc5026/julesowufinigizadoditur.pdfIn PDF document text
  • http://fevafimavot.epizy.com/87186286952.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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