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://jacksth.ru/123?utm_term=ccleaner+full+crack+cho+win+10 PDF link annotation

  • https://cdn.sqhk.co/gagadobuv/Zy8PlqG/47611326050.pdfIn PDF document text
  • https://cdn.sqhk.co/busumodofu/gMif485/31595443287.pdfIn PDF document text
  • https://cdn.sqhk.co/velabolo/IYNgdhg/leap_of_faith_assumptions_definition.pdfIn PDF document text
  • https://cdn.sqhk.co/zebenane/jdjdmjd/4888595678.pdfIn PDF document text
  • https://cdn.sqhk.co/pofoxubo/fDibAja/lakefizifiti.pdfIn PDF document text
  • https://cdn.sqhk.co/pufuxogife/X3jajgq/duneduputajenonupubunuv.pdfIn PDF document text
  • https://cdn.sqhk.co/ruwonumatag/ehdjhd3/ruledagaparufasavedabusuf.pdfIn PDF document text
  • https://cdn.sqhk.co/xekutenupi/iOuo96Z/suxigijadag.pdfIn PDF document text
  • https://cdn.sqhk.co/letareximo/jf1HhTx/wotelaza.pdfIn PDF document text
  • https://cdn.sqhk.co/rujiwujik/cMvjb3M/dhoom_3_cast_child_artist.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://c84d532c-3b33-47d6-96aa-4134a1164eb1.filesusr.com/ugd/6d45f6_ec7b376b3c254571b0a3a467ce197f34.pdf?index=trueIn PDF document text
  • https://3c31dc6e-14a3-4e60-a373-897e90814001.filesusr.com/ugd/9e17d8_bd5cd2c905284379987ae65cc4ca562e.pdf?index=trueIn PDF document text
  • https://19e6fc83-c281-4d06-93fd-e8b16a02b90a.filesusr.com/ugd/ce5d00_67ea4708a49347dfaf5a886bd9345a01.pdf?index=trueIn PDF document text
  • https://7ef5d8b8-74ac-4e0a-b0a0-fa61ca6462a8.filesusr.com/ugd/23e9be_526d9c76c0d84987ba7aa85a79b5b0dc.pdf?index=trueIn PDF document text
  • https://e5baaea7-7007-41de-9367-4ebf3ed55875.filesusr.com/ugd/8e1900_b5d4534dbd824435a2fea59e598428fe.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/jolozidabi/30916896589.pdfIn PDF document text
  • https://eaa62ee9-779c-4a2d-9f50-6c66b019a99c.filesusr.com/ugd/1cc777_69a13ac4dc11408e8561ead2395b7010.pdf?index=trueIn PDF document text
  • https://dd7ee03d-3646-4e01-a1e1-4c0a7e2c9e57.filesusr.com/ugd/d7ba0f_a19a6356c69c4cefbaa246a018f44e60.pdf?index=trueIn PDF document text
  • https://c0b8f06b-4e98-4d3d-89ef-2f08caba629a.filesusr.com/ugd/0c8cc8_af4887acb8cd40708e9f2ca50b6f1e03.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/vedexajawo/tristar_8-quart_power_cooker_plus_pressure_cooker.pdfIn PDF document text
  • https://s3.amazonaws.com/webipejonavuv/baleshwar_hd_video.pdfIn PDF document text
  • https://s3.amazonaws.com/rebomedug/xazovelomodesufagesifixe.pdfIn PDF document text
  • https://s3.amazonaws.com/viboxikuz/22233294980.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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