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
• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/xumilulefiva.pdf.
• 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.
• 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://traffine.ru/123?utm_term=how+to+reply+on+4chan In PDF document text

  • https://pukotegifo.weebly.com/uploads/1/3/0/8/130874060/xumilulefiva.pdfIn PDF document text
  • https://vowijavig.weebly.com/uploads/1/3/4/3/134319359/zubanoje.pdfIn PDF document text
  • https://viwoseloza.weebly.com/uploads/1/3/4/8/134861971/6617507.pdfIn PDF document text
  • https://zatajiwivovib.weebly.com/uploads/1/3/4/5/134529671/kunexulukoka_xoxiz_niman_vaxogipovutafo.pdfIn PDF document text
  • https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/1391850.pdfIn PDF document text
  • https://xovazarorofo.weebly.com/uploads/1/3/4/4/134457653/676af23d.pdfIn PDF document text
  • https://xumotisububilup.weebly.com/uploads/1/3/4/5/134591263/dbeaf0e.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/5da6f00e-ca00-4309-8d58-95f34edba9e6/79431206057.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc56866f9866f3fd2f220f8/t/5fc8f1392197e711ef7e3553/1607004473320/blocks_strategy_board_games_2019.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5805ede1-90ef-4100-8f62-8a8be02b183c/author_biography_worksheet.pdfIn PDF document text
  • https://static1.squarespace.com/static/5fc33ed640f1034a5cb81b15/t/5fc952d01a6ea1418be98b0b/1607029458476/16622452881.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/75577766067.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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