Malicious PDF — malware analysis report

Heuristics 8

• 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://vejevidumuruje.weebly.com/uploads/1/3/5/3/135302175/71d4007833.pdf.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://golowaki.ru/strik?utm_term=how+to+connect+viper+smart+start+to+phone PDF link annotation

  • https://vejevidumuruje.weebly.com/uploads/1/3/5/3/135302175/71d4007833.pdfIn PDF document text
  • http://zagupoxeson.iblogger.org/andreas_moritz_kidney_tea_recipe.pdfIn PDF document text
  • https://vopuxobud.weebly.com/uploads/1/3/5/9/135974080/7445288.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4465907/normal_6004323f950b8.pdfIn PDF document text
  • http://sks-expertiza.ru/asterix_the_gaul_1967dzrbw.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4479226/normal_5ff470ff226cd.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4382976/normal_5ff0192eabbf0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4457843/normal_6024a8637895d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417807/normal_602285dc80a51.pdfIn PDF document text
  • http://sdorovie-sustavi.xyz/china_national_anthemu4za1.pdfIn PDF document text
  • http://vknacruckalaikov123.xyz/81439436436ouqhp.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://f459ab6e-ac57-43ce-b83a-1524846427e4.filesusr.com/ugd/938c70_fbb2697c8f264eae8aa39b5ae0533bfb.pdf?index=trueIn PDF document text
  • http://rilefup.epizy.com/19843485490.pdfIn PDF document text
  • http://lozakonazakuker.epizy.com/essential_interviewing_and_counseling_skills.pdfIn PDF document text
  • https://3211d54f-29bc-45c2-8691-939fa64f7450.filesusr.com/ugd/2e34c2_44a870bcc2774dec98793ca3adf40579.pdf?index=trueIn PDF document text
  • https://eae964be-cf9f-49a8-9b2f-00020d526acb.filesusr.com/ugd/e932cf_1947eab0e7584be383e32254bc77a56f.pdf?index=trueIn PDF document text
  • http://wipovevoliku.epizy.com/acoustic_guitar_beginners_guide.pdfIn PDF document text
  • https://e85625e8-91d5-48c2-95a4-67b7b95d5b39.filesusr.com/ugd/b97a97_080750779f324730978982740ae4c621.pdf?index=trueIn PDF document text
  • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_5fd908c27c3f497c981cc3298897ed05.pdf?index=trueIn PDF document text
  • https://9f349447-249b-4747-956a-316fe86e371b.filesusr.com/ugd/d2b720_c86a1757284b404b9fd3aaaa99bf262a.pdf?index=trueIn PDF document text
  • http://rivuwasiwitovud.rf.gd/student_council_speech_examples.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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