Malicious PDF — malware analysis report

Static analysis result for SHA-256 425c38550716524f…

MALICIOUS

PDF

451.1 KB Created: 2022-03-18 00:02:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 8f9115943bfdd0cb7c6b6d027e0ac19f SHA-1: 0aabcf654a35b6dec6a3499daf60b620fba37b02 SHA-256: 425c38550716524f1b1cdd302e58971e9e8e2ccba0b946607e177aab2d6624ce
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=complete+tutorial+of+python+pdf PDF link annotation
    • http://laparole.net/kcfinder/upload/files/30979331888.pdfIn PDF document text
    • https://ecoverservice.be/gallery/file/vunoxivu.pdfIn PDF document text
    • http://www.etiquettes-adhesives-bobine.fr/kcfinder/upload/files/4140921082.pdfIn PDF document text
    • http://ahdongjiu.com/upload_fck/file/2022-3-7/20220307102153525531.pdfIn PDF document text
    • http://nhatnguyen.vn/media/ftp/file/fogusofe.pdfIn PDF document text
    • http://grupomagister.com.br/kcfinder/upload/files/wuvorar.pdfIn PDF document text
    • http://e5tbr.alruaa.com/ckeditor-ckfinder-integration/uploads/files/vuzoxeb.pdfIn PDF document text
    • https://samavetpharm.com/userfiles/files/viforuwekasuxesolaxog.pdfIn PDF document text
    • https://www.adira.co.id/assets/kcfinder/upload/files/60406867257.pdfIn PDF document text
    • http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/tugozufekiwosalu.pdfIn PDF document text
    • https://aspirans.com/files/file/budadavu.pdfIn PDF document text
    • https://vieclamlaocai.vn/webroot/img/files/vadiperizasuterixolejarut.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/fawoxebidejupem.pdfIn PDF document text
    • http://tnhmc.com/userfiles/file/84755029836.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161f9e533b7eff---72634638099.pdfIn PDF document text
    • http://dishandspoonproductions.com/ckfinder/userfiles/files/vinoxo.pdfIn PDF document text
    • http://leebyunghun.kr/new/upload/board/files/9409719682.pdfIn PDF document text
    • http://vitaminyplus.eu/files/file/refixetukowuzoxesasegaz.pdfIn PDF document text
    • http://architettogherardi.eu/userfiles/files/mitonimigoxula.pdfIn PDF document text
    • http://studioarchperissinotto.eu/userfiles/files/98574037553.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/10402835168.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/40094911181.pdfIn PDF document text
    • http://195exim.com/datas/files/wupezaxabidogimin.pdfIn PDF document text
    • https://ppkh.net/userfiles/file/bufopimarakiwiluzula.pdfIn PDF document text
    • https://m3nan973ru5-pa571.com/contents/files/defixovizab.pdfIn PDF document text
    • https://www.synergyom.com/kcfinder/upload/files/94096592253.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/23461136225.pdfIn PDF document text
    • https://tch.lu/files/files/19700886677.pdfIn PDF document text
    • https://eric-parnes.com/ckfinder/userfiles/files/bubigavebotuxebox.pdfIn PDF document text
    • http://re-ezumi.com/admin/kcfinder/upload/files/fiwerumolakoni.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B94 18016 bytes
SHA-256: aeb61509b04b893f3dfa4a096d610d3d306ad416e06ac2f5376e19ede148803e
font_01_sfnt_off0006cac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAC6 10840 bytes
SHA-256: dcf1005a174449bde853a74ecb92089b215b7c9ce8169f3d6fe1994b4fd7ccf8
font_02_sfnt_off0006e38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E38E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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