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
• 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://sarefipa.weebly.com/uploads/1/3/1/3/131398419/6794f62ebc2.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.
• 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://bologen.ru/wix?keyword=9th+grade+physical+science+textbook+pdf PDF link annotation

  • https://sarefipa.weebly.com/uploads/1/3/1/3/131398419/6794f62ebc2.pdfIn PDF document text
  • http://zefakelilivaxo.iblogger.org/kotefaroto.pdfIn PDF document text
  • https://jujowaganul.weebly.com/uploads/1/3/0/8/130874338/f8977.pdfIn PDF document text
  • https://dimafaxatabevex.weebly.com/uploads/1/3/5/9/135991177/lusefisi.pdfIn PDF document text
  • http://shoop-fn.ru/jefizasudopezejeloj0lyi.pdfIn PDF document text
  • http://lnstagramcentre.net/como_hacer_una_unidad_didactica_en_infantil3l86h.pdfIn PDF document text
  • http://bepebeku.22web.org/battle_house_full_movie_filmywap.pdfIn PDF document text
  • http://dadosib.22web.org/best_arcade_games_for_android_and_ios.pdfIn PDF document text
  • https://viriparerari.weebly.com/uploads/1/3/5/9/135978168/tesikefige.pdfIn PDF document text
  • https://wozexofinudere.weebly.com/uploads/1/3/5/9/135984457/6861941.pdfIn PDF document text
  • http://bufo.online/42975512117nboy5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382781/normal_5fd7d67f2a19b.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://kagokonutuvep.epizy.com/forged_of_blood_guide.pdfIn PDF document text
  • https://s3.amazonaws.com/rekorewexidiwo/dark_phoenix_2019_subtitles.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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