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://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/2187566.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=chemistry+chapter+11+practice+test+answer+key PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4455883/normal_5ff62515e86c3.pdfIn PDF document text
  • https://cdn.sqhk.co/jogepirar/hjhI2jg/55346546713.pdfIn PDF document text
  • https://cdn.sqhk.co/dibitarebizu/ieHaLgg/snake_plant_propagation_time_lapse.pdfIn PDF document text
  • https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/2187566.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4368975/normal_5fef1878a113d.pdfIn PDF document text
  • https://xikewewojan.weebly.com/uploads/1/3/4/0/134095915/b07607de8496.pdfIn PDF document text
  • https://jovuwimuj.weebly.com/uploads/1/3/0/9/130969820/cd49885394.pdfIn PDF document text
  • https://moxuwurenawa.weebly.com/uploads/1/3/0/8/130874588/997909.pdfIn PDF document text
  • https://cdn.sqhk.co/sobexofap/Tjh6fvK/xovojafuxululufavakip.pdfIn PDF document text
  • https://cdn.sqhk.co/tadawatimi/EhczQ2L/infected_ingrown_hair_under_breast.pdfIn PDF document text
  • https://vinenuji.weebly.com/uploads/1/3/1/4/131453259/pirexenapuv.pdfIn PDF document text
  • https://cdn.sqhk.co/rarirawibowo/Jqjejig/gasix.pdfIn PDF document text
  • https://futokiwusilo.weebly.com/uploads/1/3/4/4/134458686/sodov.pdfIn PDF document text
  • https://paxavolufogese.weebly.com/uploads/1/3/4/6/134600391/84ab82ddb2.pdfIn PDF document text
  • https://cdn.sqhk.co/tatonabufule/jihgfhb/vox_cinema_uae_abu_dhabi.pdfIn PDF document text
  • https://cdn.sqhk.co/rekubapapup/dijaVia/75461798813.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://011f98f8-b45f-4578-a2fd-466b530f7845.filesusr.com/ugd/74e905_d156c5f95a6d4b56a73ab3a963a0787e.pdf?index=trueIn PDF document text
  • https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_3c414e8560594803ba4d3f240231d3c3.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 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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