Malicious PDF — malware analysis report

Static analysis result for SHA-256 847e9f1f9dd7eba2…

MALICIOUS

PDF

305.0 KB Created: 2022-03-02 22:10:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 9fadd72e034b98254a47c28974bbfa52 SHA-1: 8a8d9548cd304f349e4d3d9f7b86a6325267eea3 SHA-256: 847e9f1f9dd7eba2fddf60ac12eac87c12901f78b144a423b81f389d2be28371
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6722

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://www.santabriganti.org/admin/ckfinder/userfiles/files/sizalov.pdf In PDF document text
    • http://aaaexpressheating.com/userfiles/file/mulaxikagifuxiwasezatoro.pdfIn PDF document text
    • https://www.studiopicotti.com/_admin/kcfinder/upload/files/gekodowo.pdfIn PDF document text
    • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/20815557360.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/37915970425.pdfIn PDF document text
    • https://ikincielinmak.com/upload/ckfinder/files/74005547716.pdfIn PDF document text
    • http://ovstav.cz/app/webroot/files/files/94747265664.pdfIn PDF document text
    • http://progettocecinacuore.it/writable/public/userfiles/file/dusidatovifogugan.pdfIn PDF document text
    • http://electronicascanaresas.com/kcfinder/upload/files/pubudinitobodone.pdfIn PDF document text
    • https://www.ssemusic.com/kcfinder/upload/files/rojuriwikowepolelevotor.pdfIn PDF document text
    • http://teleprasowanie.pl/kcfinder/upload/files/jivafebu.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/zukipadebogepowijewowogo.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1621d4dfa4c9a2---pajolesumanewose.pdfIn PDF document text
    • http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/e95463704c371d80766d29aa92d904bd/xaxovotika.pdfIn PDF document text
    • https://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/levana.pdfIn PDF document text
    • http://kulukaubandus.ee/files/filemanager/files/ximesugifog.pdfIn PDF document text
    • http://ptd-tver.ru/content/files/upload/files/kanakaritoxi.pdfIn PDF document text
    • https://ciela13.leaddeehub.com/userfiles/files/soxidikekumijakari.pdfIn PDF document text
    • http://www.barbantie.com.br/admin/plugins/ckeditor/kcfinder/upload/files/81565110425.pdfIn PDF document text
    • http://huyndaicaudien.com/upload/files/33378045305.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161fbc0cf8de69---38699108161.pdfIn PDF document text
    • http://knowitcolombia.com/kcfinder/upload/files/piwesuz.pdfIn PDF document text
    • http://kientrucmoi.com.vn/admin/kcfinder/upload/files/983450384.pdfIn PDF document text
    • https://kiofruits.com/admin/uploads/files/fukejakibuwavunita.pdfIn PDF document text
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16207b0be0d6cc---96075642411.pdfIn PDF document text
    • https://lordoptika.hu/files/files/rodalikuvekugowod.pdfIn PDF document text
    • http://lonsdale.ee/tipikas/uploads/sisupildid/benidasisi.pdfIn PDF document text
    • https://casadko.fr/userfiles/file/difanelipetugoximeju.pdfIn PDF document text
    • http://ydchem.cn/filespath/files/20220302135526.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/zabovuruzejen.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/zuverug.pdfIn PDF document text
    • https://egca.fr/userfiles/file/zapiraxogolorexevev.pdfIn PDF document text
    • http://tefen67.com/userfiles/files/gazolo.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=hylete+shorts+guidePDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00043048.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00043048.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00043048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43048 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00044768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44768 10464 bytes
SHA-256: c77589d07e8cd1e313bec27ffc68352acd34f582f3daade75e0ea7639b724ca6
font_02_sfnt_off00045f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45F15 16888 bytes
SHA-256: 81a21d663d689284cf0f8dcc3a1124dc441ae8ab8d7f9772133e9004e87c70c2
font_03_sfnt_off0004778b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4778B 23616 bytes
SHA-256: 343c7d3bc214bcf8074845f44585df3aac1327d4548c5158d0b29d28aa97140c