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.
• 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://fefizilev.weebly.com/uploads/1/3/1/4/131453506/mazofefir_lutenezuwit.pdf.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://vilenefex.ru/wix?keyword=yahoo+password+reset+help PDF link annotation

  • https://fefizilev.weebly.com/uploads/1/3/1/4/131453506/mazofefir_lutenezuwit.pdfIn PDF document text
  • http://idealica-columbia.site/jawiwiguribitew3omh.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4407060/normal_6041e3c445021.pdfIn PDF document text
  • http://rezotu.xyz/sage_the_gemini_no_exes_tekstowonjheo.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366348/normal_6032e45830db8.pdfIn PDF document text
  • https://kabudinikibe.weebly.com/uploads/1/3/4/7/134716255/mapago.pdfIn PDF document text
  • https://sivikowililip.weebly.com/uploads/1/3/4/5/134599649/a300acc0a4efea5.pdfIn PDF document text
  • https://vizodifoberesin.weebly.com/uploads/1/3/4/9/134900429/cf762f.pdfIn PDF document text
  • http://com-signto6.xyz/taranagy36rc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374953/normal_60542db1abdf0.pdfIn PDF document text
  • https://jonokerozub.weebly.com/uploads/1/3/4/7/134714828/lazupikegogizafipu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4371013/normal_601902fbd79e8.pdfIn PDF document text
  • http://about-igsupport.com/how_to_replace_the_charging_port_on_samsung_tablettg6q2.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4428331/normal_6016b903811e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460477/normal_604300fc3d890.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463275/normal_602e11b9b4565.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_54764c2b1d1b418aa6306891b813eca9.pdf?index=trueIn PDF document text
  • https://c2267750-1f6d-4c2f-944a-eb302c7f07d7.filesusr.com/ugd/93971e_067952f56bb947a1941225223d182b43.pdf?index=trueIn PDF document text
  • https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_293d566cd78c495bad05a6b2f30a47dc.pdf?index=trueIn PDF document text
  • https://ff9dba89-6132-4485-99c2-ace8a2453124.filesusr.com/ugd/c3f59f_c2455a8775ee427b926e3ba0dada5229.pdf?index=trueIn PDF document text
  • https://50c84cdf-c8d4-407e-a307-361b94491100.filesusr.com/ugd/f2656e_5079846be0d84c2fbecf9e29ec2c5d45.pdf?index=trueIn PDF document text
  • https://b1e6e3cd-24a2-426a-8b7d-e8f4bd81915b.filesusr.com/ugd/83e584_5fd0c7bb6a474a5e87d525f30906a4af.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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