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://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/dfd585.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://jumiwimov.ru/award?keyword=wordly+wise+3000+book+8+lesson+14+pdf PDF link annotation

  • https://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/dfd585.pdfIn PDF document text
  • https://cdn.sqhk.co/jenexovu/ieXgeid/97069628624.pdfIn PDF document text
  • https://cdn.sqhk.co/jotepomi/HeMgcWK/82239405019.pdfIn PDF document text
  • https://xotituwidekave.weebly.com/uploads/1/3/4/5/134585458/suvusizibilalo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402745/normal_605cc19e72c89.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4477626/normal_6033a28b076c3.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4454052/normal_601c65082ec45.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4476010/normal_60049d0d4d9f5.pdfIn PDF document text
  • https://cdn.sqhk.co/vipujitebiki/hiZNAU1/korukomitixaxakiroruw.pdfIn PDF document text
  • http://fisitupogavi.mypressonline.com/texinewafo.pdfIn PDF document text
  • https://nopiviwefimak.weebly.com/uploads/1/3/4/7/134708781/dozasudaso_jomodut.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://6c8ebe11-725c-420b-823a-68bc39d02ad2.filesusr.com/ugd/3e87bf_46eae8d454354cc5bc69a686b4879a32.pdf?index=trueIn PDF document text
  • http://peruroz.onlinewebshop.net/diagrama_bioclimatico.pdfIn PDF document text
  • http://natizuf.onlinewebshop.net/panetifoxigugotu.pdfIn PDF document text
  • https://e05653fc-386e-4c8b-889d-738aee72c63e.filesusr.com/ugd/62421a_63d30a08febd45a48b86252817367675.pdf?index=trueIn PDF document text
  • https://33edd578-4186-4695-89f3-f56a5a23fc53.filesusr.com/ugd/f17c08_d0a169162a954fac8eee0bd4086aeebc.pdf?index=trueIn PDF document text
  • http://gufopexolax.myartsonline.com/hepatic_encephalopathy.pdfIn PDF document text
  • https://b56e6f12-3f4b-4b75-bc29-9585eb3fba71.filesusr.com/ugd/73f0dd_90ff594347884dd98c49cd17216a3f75.pdf?index=trueIn PDF document text
  • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_9b45d56378fd42bdb0be59c4db35b46d.pdf?index=trueIn PDF document text
  • https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_f4316bbf93504a4db2b1b3de615378dd.pdf?index=trueIn PDF document text
  • https://ac685e6e-6442-44c0-91a1-b3a367e79ef2.filesusr.com/ugd/ce77c6_44838f4a0e4741408e3d951c86a703a3.pdf?index=trueIn PDF document text
  • https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_a580dd8ae7174e86a94ed26cf0d674c4.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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