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://wudufedowuton.weebly.com/uploads/1/3/2/8/132815791/sagurupodejunow.pdf.
• Government-agency impersonation credential phishing lure high SE_GOV_CREDENTIAL_PHISH
  Document impersonates a government agency (Social Security, IRS, Medicare, HMRC, etc.) and uses identity/benefits-verification coercion ('identity verification required', 'this review is mandatory', 'temporary account restrictions') to steer the reader to a link that is not an official .gov/.mil destination — the hallmark of a benefits/identity credential-harvesting lure.
• 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://sunuf.co.za/YmrXLWy8?keyword=merge%20pdf%20files%20online%20without%20email%20free%20without%20downloading%20free PDF link annotation

  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/342a635d5a718eadfc4b8455042cd149/46628121714.pdfIn PDF document text
  • http://honeystraw.com/uploadfiles/file/mejizudujeporupurubidu.pdfIn PDF document text
  • https://wudufedowuton.weebly.com/uploads/1/3/2/8/132815791/sagurupodejunow.pdfIn PDF document text
  • http://temdientu.vn/images/ckeditor/files/13575781009.pdfIn PDF document text
  • http://spreewaldpension-luebben.de/meineBilderAlbertGrundschule/file/4162140876.pdfIn PDF document text
  • https://famigupew.weebly.com/uploads/1/3/5/3/135302829/direxazulalapum_wenitis_zoluvozi_kejuvodijupe.pdfIn PDF document text
  • https://mofuxobilewita.weebly.com/uploads/1/3/5/4/135400762/470125ab8.pdfIn PDF document text
  • https://0800-707-808.com/upload/ckfinder_temp/files/20220225074843.pdfIn PDF document text
  • http://domeinbeverdonk.be/assets/files/file/razepukumuluvedusudij.pdfIn PDF document text
  • https://anupbolivia.com/images/files/gotelisaroloboburijon.pdfIn PDF document text
  • https://vedenilomux.weebly.com/uploads/1/4/1/5/141564359/jesapedevaza.pdfIn PDF document text
  • https://julamebuviweto.weebly.com/uploads/1/3/4/5/134509829/27fbd5982a.pdfIn PDF document text
  • https://jezasozogederek.weebly.com/uploads/1/3/5/9/135960593/9507255.pdfIn PDF document text
  • https://mamiwego.weebly.com/uploads/1/3/4/3/134315995/2d6a3.pdfIn PDF document text
  • https://favigexa.weebly.com/uploads/1/3/0/7/130738696/guwibulirok.pdfIn PDF document text
  • http://sdruzeniprojablonne.cz/userfiles/files/61261732364.pdfIn PDF document text
  • https://rubuxunixo.weebly.com/uploads/1/3/4/5/134518382/f6673b5873165.pdfIn PDF document text
  • http://epplast.com/files/file/lunabinaluxitaxorojulaziw.pdfIn PDF document text
  • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624af93e455bc---tatubawemadisulizadadof.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000cbe2.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cbe2.bin)

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