Malicious PDF / .VIR — malware analysis report

Heuristics 9

• 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.
• Security software disable instruction high SE_SECURITY_BYPASS
  Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
• 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 http://fly-drive.online/sparknotes_lord_of_the_flies_chapter_8-128osin.pdf In PDF document text

  • https://xisofufewazexi.weebly.com/uploads/1/3/0/7/130776718/gevalexelev-figabesiwegawe-bududomu-viwulofime.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451027/normal_6031dc40aaf02.pdfIn PDF document text
  • https://putoluvutawubu.weebly.com/uploads/1/3/1/4/131437806/nagutinomadunuvero.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4443624/normal_6041d6a41fa22.pdfIn PDF document text
  • https://lopowizuxo.weebly.com/uploads/1/3/4/4/134438001/b4ec3.pdfIn PDF document text
  • https://kasasifu.weebly.com/uploads/1/3/4/6/134697732/jezedukizi_bumada_ledorigejawak.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4488332/normal_60316613d20bb.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4366980/normal_5fed39c502924.pdfIn PDF document text
  • https://nokaroropufut.weebly.com/uploads/1/3/1/4/131453144/1033928.pdfIn PDF document text
  • http://starconflict-game.ru/32478412370rqv0g.pdfIn PDF document text
  • http://xibawolafubiz.getenjoyment.net/takosidanolumudubule.pdfIn PDF document text
  • https://midufefew.ru/wix?keyword=bulk+image+downloader+serial+numberPDF link annotation
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00015479.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00015479.bin)
  • http://rowoniwetob.atwebpages.com/alesis_qs8_factory_reset.pdfIn PDF document text
  • https://7211abc3-b26e-437e-abd8-8a8c7ebd4af5.filesusr.com/ugd/0683fb_88f3c2b9d24b4e42a73f2aab1d151889.pdf?index=trueIn PDF document text
  • https://b760d8db-9746-4821-aa2b-94c9f806d328.filesusr.com/ugd/26ce45_9a5b82df306e4f6b9df790480d4f8fe6.pdf?index=trueIn PDF document text
  • http://nukivamo.myartsonline.com/27953467958.pdfIn PDF document text
  • http://romepasuv.myartsonline.com/20359793044.pdfIn PDF document text
  • https://c8f6a2ed-bc8a-4fd4-b26a-19707db7c4cd.filesusr.com/ugd/1cc7e8_3688a552b63a4d468c52c419fb142c22.pdf?index=trueIn PDF document text
  • https://4a5660cc-52a2-48ff-9acb-4b4f1704cb6e.filesusr.com/ugd/81868d_c0e9f1fd47644297bd9b98563b07f74c.pdf?index=trueIn 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 extracted file (font_00_sfnt_off00015479.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off000190b6.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off000190b6.bin)

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