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.
• 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://tozugijojabam.weebly.com/uploads/1/3/4/6/134640227/xubebivazu.pdf.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://baarspo.ru/award?keyword=biochemical+engineering+and+biotechnology+pdf PDF link annotation

  • http://privateguardingserviceagainstdanger.site/33376214846p5zlz.pdfIn PDF document text
  • http://korsabarca.com/bafugujapepireujp6u.pdfIn PDF document text
  • https://cdn.sqhk.co/lekusovu/aghRjgL/50993143.pdfIn PDF document text
  • https://cdn.sqhk.co/lidupusumoj/hi0hejh/71176747821.pdfIn PDF document text
  • http://cosmicgig.com/who_plays_rhonda_on_that_70s_show0kn2q.pdfIn PDF document text
  • https://cdn.sqhk.co/dozirolizilu/mO9Hpvr/fulapegepekodanigodewomek.pdfIn PDF document text
  • http://3bki.ru/bezomomape71l18.pdfIn PDF document text
  • https://tozugijojabam.weebly.com/uploads/1/3/4/6/134640227/xubebivazu.pdfIn PDF document text
  • https://cdn.sqhk.co/wudawagirus/ifhifig/dunotawimo.pdfIn PDF document text
  • http://blog-uniswap.org/119071234112y0b.pdfIn PDF document text
  • https://mufixedak.weebly.com/uploads/1/3/4/6/134602267/fimevuxosizar_bevoziperaz.pdfIn PDF document text
  • https://cdn.sqhk.co/kukisigafumi/Qgjn7QS/savusepinitorajobigob.pdfIn PDF document text
  • http://superheatbelt.xyz/can_you_use_google_maps_offline_iphonek8gqp.pdfIn PDF document text
  • https://cdn.sqhk.co/juvowisire/ahhjgX5/nanozudejusok.pdfIn PDF document text
  • https://jurivulanikep.weebly.com/uploads/1/3/4/5/134525456/1a48c1fa5862.pdfIn PDF document text
  • https://zegasapazenavu.weebly.com/uploads/1/3/5/3/135326880/sojekef-mivonagivul.pdfIn PDF document text
  • https://cdn.sqhk.co/bisulalu/vipphd0/83346218015.pdfIn PDF document text
  • https://lanoxujuzon.weebly.com/uploads/1/3/4/6/134630121/8398087.pdfIn PDF document text
  • http://zdsshop.top/how_to_write_a_personal_narrative_essay_for_high_school26j8y.pdfIn PDF document text
  • https://cdn.sqhk.co/vetelovube/lYPGjfP/14463620390.pdfIn PDF document text
  • https://cdn.sqhk.co/rufebumu/ghXLSia/premiere_theater_cloquet_minnesota.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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