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://puzuzabijil.weebly.com/uploads/1/3/2/8/132814257/107020.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://crophysi.ru/123?utm_term=credit+report+freeze+fees+by+state PDF link annotation

  • http://espacecmb.xyz/how_to_pass_the_ap_human_geography_examt8se9.pdfIn PDF document text
  • http://busibear.com/tezusujomibulefezaf5q9gn.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4419851/normal_5fe738169380b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414500/normal_604a2beb01754.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4504870/normal_6002f1a9418c3.pdfIn PDF document text
  • https://puzuzabijil.weebly.com/uploads/1/3/2/8/132814257/107020.pdfIn PDF document text
  • http://profaudit32.ru/63205030228qgbbc.pdfIn PDF document text
  • https://xepesirivow.weebly.com/uploads/1/3/1/4/131408502/8309475.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383925/normal_604d3114c0643.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/7cf07dc9-3582-450f-a06c-c13c08947ef9/snow_white_and_the_huntsman_director_affair.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4458e8f3-58f8-4741-8c85-390a23de9bfc/how_much_does_cfa_exam_cost.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2f70d9ed-83f1-40d0-884d-651c01745b17/93811595266.pdfIn PDF document text
  • https://33fe1336-4051-433c-b691-b763732126dd.filesusr.com/ugd/6c8f37_e6fffc4b99f5410ba07bea90105de9a8.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/3510f419-6ae2-4315-9dbd-b1fcbae2301d/bepefanetefozedud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eb6e34bb-992a-43ce-9c84-64a6b533a313/how_to_reset_netgear_n300_wifi_extender.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1e02eab3-5042-4512-bffa-35b94e1ac554/what_is_the_best_topic_for_quantitative_research.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/55ea957d-1f12-4bf9-8efc-c53f1275f859/secnavinst_5210.11_ssic.pdfIn PDF document text
  • https://7f3dc8b3-869c-44c5-82eb-14ae88d57796.filesusr.com/ugd/dc4ca1_6fd1ccc4c5f244169e8930048a11f13d.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/0cb78de4-c4e6-463b-8add-d8bff2f8214f/43844157999.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/af4ce6cb-5549-45bb-9f90-719424af1649/rudes.pdfIn 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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