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
• 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://doxavigefixo.weebly.com/uploads/1/3/5/3/135391607/3ccd250e3cfe3cb.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://baarspo.ru/123?utm_term=maths+worksheets+year+7+uk PDF link annotation

  • https://doxavigefixo.weebly.com/uploads/1/3/5/3/135391607/3ccd250e3cfe3cb.pdfIn PDF document text
  • https://nivirijimukavut.weebly.com/uploads/1/3/2/6/132681164/23646734ca4.pdfIn PDF document text
  • http://radogomi.mygamesonline.org/sezewitegom.pdfIn PDF document text
  • https://febosefukeja.weebly.com/uploads/1/3/5/3/135324858/goniguwotam.pdfIn PDF document text
  • https://denibemexe.weebly.com/uploads/1/3/4/5/134597338/tapegetikuve.pdfIn PDF document text
  • http://manamuposa.getenjoyment.net/11748436562.pdfIn PDF document text
  • https://kifajiziwezu.weebly.com/uploads/1/3/2/7/132740821/waxij.pdfIn PDF document text
  • http://lumejaramelu.mygamesonline.org/big_data_analytics_frameworks.pdfIn PDF document text
  • https://zufajutikeg.weebly.com/uploads/1/3/4/3/134355725/mosilaxa-busaw-lutojekew-lofisufe.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://e148473a-3d1a-46f8-b788-fbc1f5af68d4.filesusr.com/ugd/e1e70b_03ac9cadb79c4d988c2c68fd15fd7adb.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/6195c310-d0b8-4597-b31b-32bda6b621c3/57816272464.pdfIn PDF document text
  • https://16cc4848-9a85-487f-bc1d-da55f68f8448.filesusr.com/ugd/dcf86b_85b0bc4ba3f349dfaab44a48918c5642.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/26e62ead-6241-45fe-9e1a-d9a97b7ed863/75510694724.pdfIn PDF document text
  • https://86146b48-cf95-488a-b5a0-22832f4589a6.filesusr.com/ugd/3b4eee_e0c2651d0fd24507b01a41787454ea4f.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/xepululejiwof/how_to_fix_a_samsung_s4_that_wont_turn_on.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e28fe7a0-815f-4b54-a25d-ca8297f577c9/85961896908.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/508f7c9a-27d4-4f61-a200-a3386e84650f/pygame_download_for_python_3.6_windows_64_bit.pdfIn PDF document text
  • https://s3.amazonaws.com/kozewuposoridil/crimping_tool_user_guide.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ad25522b-3e35-4bfc-ab96-43a073e997c7/jesse_lauriston_livermore_books.pdfIn PDF document text
  • https://7605d98d-8b17-4a41-9383-f5c8d5af9bcc.filesusr.com/ugd/2bed4c_43dd7121ee08420090f057ff5ca86937.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

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