Malicious PDF — malware analysis report

Static analysis result for SHA-256 25869da91b739800…

MALICIOUS

PDF

169.1 KB Created: 2022-03-04 07:31:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: f74f374dc090dfe6859102e51a2ee102 SHA-1: e6fbd28f5fcc8831dff58eb6fb950eca8ea0e2ee SHA-256: 25869da91b73980045bfa0d2475189c184e8b85b2ebaefbd8d8c1d09345171ac
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8273

Heuristics 5

  • 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 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 http://nhuaduongnhapkhauaz.com/upload/files/gejipasodenovi.pdf In PDF document text
    • http://belspelen.nl/admin/kcfinder/upload/files/sezivopix.pdfIn PDF document text
    • http://pbhdom.eu/userfiles/file/wuzetokuzodivuvuzoroji.pdfIn PDF document text
    • http://temple.mo/userfiles/file/46969848981.pdfIn PDF document text
    • https://dgssu.com/upfolder/e/files/20220303051432.pdfIn PDF document text
    • http://www.kuchnie.franpolmeble.pl/upload/file/49417749623.pdfIn PDF document text
    • https://swaarm.de/app/webroot/upload/files/nudamigonak.pdfIn PDF document text
    • http://ulleungroadtour.com/FileData/ckfinder/files/20220302_0E7BC0CA58166239.pdfIn PDF document text
    • http://triomil.cz/kcfinder/upload/files/siworidavakuzogo.pdfIn PDF document text
    • http://moonyart.ru/admin/ckeditor/kcfinder/upload/files/99258273265.pdfIn PDF document text
    • http://harmony-stone.info/js/kcfinder/upload/files/pugililukubu.pdfIn PDF document text
    • https://thermocalnepal.ramjanki.com/ckeditor/kcfinder/upload/files/19644691808.pdfIn PDF document text
    • http://minerva-collection.net/files/files/21703716474.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20220209_A74C6D151C317253.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/gojejag.pdfIn PDF document text
    • http://peknanevesta.sk/media/file/38009176157.pdfIn PDF document text
    • http://chestheart.org/journal/assets/ckeditor/kcfinder/upload/files/mitowezudi.pdfIn PDF document text
    • http://doicoffee.co.jp/js/kcfinder/upload/files/40990527665.pdfIn PDF document text
    • http://maaramachandifpo.com/admin/userfiles/file/kurolakuresa.pdfIn PDF document text
    • http://tsuyopillar.com/assets/kcfinder/upload/files/3577545377.pdfIn PDF document text
    • http://thriftstorewebsites.net/flash/thriftstorewebsites.net/file/49699089660.pdfIn PDF document text
    • https://yello.gazzeta-group.cz/userfiles/file/xagaguzunavisesibufewak.pdfIn PDF document text
    • http://lavender-farm.ro/app/webroot/js/kcfinder/upload/files/baperupatusa.pdfIn PDF document text
    • http://cancercareresearch.com/userfiles/file/62402206606.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/i9hb5199nekpf24387rcn8rlge/89988686965.pdfIn PDF document text
    • https://congnghiepxd204.vn/upload/files/poridibuvusifipivo.pdfIn PDF document text
    • https://tcremich.lu/files/files/vefoxubudezojafisisu.pdfIn PDF document text
    • http://nfc.soo.jp/file/26623110252.pdfIn PDF document text
    • https://limblength-sldf.com/userfiles/file/karetowuxi.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/92552639332.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=mahila+master+health+checkup+appPDF 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_off00023319.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00023319.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23319 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00024a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24A34 18592 bytes
SHA-256: f6b5a22fa5ad20a41ffccc17b6742ae5af5d720e3e060dbb716d08e0bbd27558
font_02_sfnt_off00027b8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27B8F 10600 bytes
SHA-256: 678a3448b4aa6b7607e82a697130a61fc8d8ff8a364e3753d7c91a5aa9263e5c