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://xofajusas.weebly.com/uploads/1/3/1/0/131069744/84050f.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://fokemale.ru/wix?keyword=chemistry+3.1+section+assessment+answers PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4408990/normal_5fdce0d297edb.pdfIn PDF document text
  • https://xofajusas.weebly.com/uploads/1/3/1/0/131069744/84050f.pdfIn PDF document text
  • https://nexuragero.weebly.com/uploads/1/3/4/7/134751893/xolegatejesewup.pdfIn PDF document text
  • https://semizafug.weebly.com/uploads/1/3/1/8/131871859/mekaj.pdfIn PDF document text
  • http://beremoter.online/zavixumqadij.pdfIn PDF document text
  • https://rofosuvobatijam.weebly.com/uploads/1/3/4/6/134661532/7173095.pdfIn PDF document text
  • https://sebeguresed.weebly.com/uploads/1/3/5/9/135966133/13f38a04f9b3.pdfIn PDF document text
  • https://gobalubige.weebly.com/uploads/1/3/5/3/135339343/2273596.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4480750/normal_6021159d669b7.pdfIn PDF document text
  • http://sadovik.me/97888722140ep0e7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4481522/normal_602832b9ed8bf.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4404750/normal_5ff194aa58758.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446496/normal_6010d00ddaf10.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384483/normal_601179a742370.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369768/normal_5fd0a523576ef.pdfIn PDF document text
  • https://vojitimene.weebly.com/uploads/1/3/4/5/134596684/devukiwuwiziv.pdfIn PDF document text
  • http://yewes.fun/mblex_study_guide_2019_freemwr7f.pdfIn PDF document text
  • https://kekoluborefox.weebly.com/uploads/1/3/5/3/135327445/1669546.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4372960/normal_600e3206bc0ed.pdfIn PDF document text
  • https://zewerigavuj.weebly.com/uploads/1/3/2/6/132681779/2b8c093b6.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4502721/normal_5fc9aa275d1b7.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://77da94c0-0f0a-445b-87af-e489a0b5ef66.filesusr.com/ugd/db1da1_f9c6691669a74fe98e9dff268990870d.pdf?index=trueIn PDF document text
  • https://f1801c53-b3f5-4b94-a9b3-4bb8eb376a66.filesusr.com/ugd/af633f_dc9b3355843648ba92a01083349c49d2.pdf?index=trueIn PDF document text
  • https://43cb2d18-1589-43a7-b1c5-fe1278e1c76d.filesusr.com/ugd/370b54_8bd73d1f3e494461906a8584d449e2a2.pdf?index=trueIn PDF document text
  • https://3bdad275-8828-414d-9063-9532e035d791.filesusr.com/ugd/c67d0c_60b1f5dc7a1a473093a4d25d24594a74.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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