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.
• Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
  Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://jottigo.ru/wix?keyword=vpn+defender+apk PDF link annotation

  • https://rilobajivevet.weebly.com/uploads/1/3/1/4/131438099/320e8e.pdfIn PDF document text
  • https://cdn.sqhk.co/dawadetugas/TiaFieq/41447500553.pdfIn PDF document text
  • https://cdn.sqhk.co/tokarikadez/hdJghyu/42077086052.pdfIn PDF document text
  • https://cdn.sqhk.co/negapevu/Yf6jiL1/57483947792.pdfIn PDF document text
  • https://cdn.sqhk.co/xamitarerivu/Shchdhj/download_skin_minecraft_pacman.pdfIn PDF document text
  • https://cdn.sqhk.co/vewimidipiv/TyifGRB/wonajudafesuve.pdfIn PDF document text
  • https://famemizi.weebly.com/uploads/1/3/6/0/136006686/352c285f.pdfIn PDF document text
  • http://zavutuwifuwe.iblogger.org/high_yield_topics_in_surgery_for_neet_pg.pdfIn PDF document text
  • https://cdn.sqhk.co/rapawaferew/hj5gju1/fowopusebujoxewafavoforu.pdfIn PDF document text
  • https://cdn.sqhk.co/bozogekeji/idheQ3O/healthy_road_trip_snacks_vegan.pdfIn PDF document text
  • https://cdn.sqhk.co/wutalididow/YVjbCia/unit_10_diagramming_sentences_answers.pdfIn PDF document text
  • https://cdn.sqhk.co/bureruverog/iHBgcOm/nick_jonas_diabetes_story.pdfIn PDF document text
  • https://jitebemaduk.weebly.com/uploads/1/3/4/6/134692965/b105b7.pdfIn PDF document text
  • https://cdn.sqhk.co/zinoliwomi/2jiPmjb/teach_english_online_courses.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://pubometev.rf.gd/harry_potter_movies_1-_8_free.pdfIn PDF document text
  • https://s3.amazonaws.com/wizitifowubux/kerala_psc_bulletin_book.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8c600715-180e-4de9-b38e-bf5b9bd701ca/wekizebetokaxukiwulew.pdfIn PDF document text
  • https://s3.amazonaws.com/fodose/sowowokumoz.pdfIn PDF document text
  • http://fijibiwuweze.rf.gd/classic_alchemy_guide_1-_300.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9004bac-67ea-4e93-852f-1170f05dfbfc/how_to_draw_a_human_body_for_beginners.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c2d8c32e-7202-4d05-b9cb-2ff7f0705517/how_to_learn_html_and_css_quickly.pdfIn PDF document text
  • https://s3.amazonaws.com/naxozelozude/dsc_pc1616_change_phone_number.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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