Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://jottigo.ru/award?keyword=unisa+payment+details+pdf PDF link annotation

  • https://vatifogogunubit.weebly.com/uploads/1/3/4/7/134725392/7a9c2.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4496381/normal_5fcf089c2713c.pdfIn PDF document text
  • https://sarisiwubaj.weebly.com/uploads/1/3/0/7/130739508/8860362.pdfIn PDF document text
  • http://lady-bug.club/blank_6_column_chart_template6eiya.pdfIn PDF document text
  • http://sk-anker.ru/books_similar_to_fifty_shades_of_grey_and_bared_to_youkxugx.pdfIn PDF document text
  • http://vkrowl.com/probability_book_mittbgf6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4466411/normal_60627d0c3514b.pdfIn PDF document text
  • https://metuliwilive.weebly.com/uploads/1/3/4/3/134386481/5354951.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460063/normal_600e9b3323e98.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4467285/normal_5ffff370613d6.pdfIn PDF document text
  • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/nivuvubazi.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4453553/normal_600c94be90776.pdfIn PDF document text
  • https://gubulugovidenu.weebly.com/uploads/1/3/1/4/131406252/lepek-juxomisexubane-gowuxuwasugi.pdfIn PDF document text
  • http://badge-verification-center.com/fozojopavotutonebasefamijqzns.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_4d2f9e56916144789460303d7eafe91b.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/jivala/business_analysis_case_study.pdfIn PDF document text
  • https://s3.amazonaws.com/mosezavor/neoplasia_maligna_de_tiroides.pdfIn PDF document text
  • https://ddf64d59-5240-4154-9987-17dfc28e22c7.filesusr.com/ugd/cec570_132f610b4dde40458706e0cc45bf9ec5.pdf?index=trueIn PDF document text
  • https://2ae8fa2d-8b21-4cd7-bd94-b44763fb9b4d.filesusr.com/ugd/8e1ec7_2b4311b229034b78b6b61bfc76b4e7a1.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/wiwuxot/game_adventure_story_2_mod_apk.pdfIn PDF document text
  • https://s3.amazonaws.com/xidazeze/what_is_the_protocol_for_covid_positive.pdfIn PDF document text
  • https://748e6e98-33e2-4bd1-95aa-01ea3505a154.filesusr.com/ugd/704f6c_a4baaf937e2d462b8e7851b9910d4d59.pdf?index=trueIn PDF document text
  • https://3f46bf15-0a8c-4e80-b3e5-a2e3bf90e008.filesusr.com/ugd/8e6e76_07e933477054422da6d2901c351f07db.pdf?index=trueIn PDF document text
  • https://9de673a2-3b8e-40eb-bbf5-c0ad8e71a3da.filesusr.com/ugd/bd5c68_4ee47c412c544de49ff1a4139377c723.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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