Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c4298e7f881a48…

MALICIOUS

PDF

481.8 KB Created: 2022-03-16 08:56:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: c54298dcd142ca260b253ce53e274f3e SHA-1: 2f29759e43da8322e1812f413d721a938901db38 SHA-256: 25c4298e7f881a480d05b48397bf61b48f115ecbb827a38ef08c83ad87763103
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6602

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
  • 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://mifuj.co.za/XSRYdR1H?utm_term=dilution+guide+for+essential+oils PDF link annotation
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1621336c6a2170---rexasajivekugefi.pdfIn PDF document text
    • http://talentfuturesservices.com/sharpinstitute/images/files/kaguxeberavusagugubaki.pdfIn PDF document text
    • https://xn----8sbkgjdl3aku5f.xn--07-6kc3bf4angc2g.xn--p1ai/files/files/31273251361.pdfIn PDF document text
    • https://drhuanghair.com/uploads/files/202202252300483232.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/xolaziga.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16213a7c05a97b---zobiwiliwupokede.pdfIn PDF document text
    • https://industrialguide.net/userfiles/file/vasimaxe.pdfIn PDF document text
    • http://ck-kutnahora.cz/gais/image/file/wapasij.pdfIn PDF document text
    • https://fotografski-studio.kost.si/userfiles/file/xanofulofubitezoti.pdfIn PDF document text
    • http://7serve.org/userfiles/file/20220315224652.pdfIn PDF document text
    • https://lepinacle.hk/editor_upload/file/samudixaxelup.pdfIn PDF document text
    • https://divinehm.com/ckeditor/kcfinder/upload/files/pelagowaxuzaziv.pdfIn PDF document text
    • http://agrariusnet.hu/admin/ckeditor/kcfinder/upload/files/5268520959.pdfIn PDF document text
    • http://embauchecadre.com/kcfinder/upload/files/77716269697.pdfIn PDF document text
    • http://xn--q20b13r9leepaeb.net/upload/file/202203081054351491.pdfIn PDF document text
    • http://nuocmambason.com/upload/fckimagesfile/a070c44a3b2c1d693d264134779bb020.pdfIn PDF document text
    • http://xaydungtruongsinh.com/public/assets/ckeditor/kcfinder/upload/files/9066847059.pdfIn PDF document text
    • http://premiumdrinks.eu/userfiles/10434937408.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/k5eap737n6q5n35oqbougna1vk/mafibelikinapejolapagu.pdfIn PDF document text
    • http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/diponatufavubizubisatute.pdfIn PDF document text
    • https://cafeau1ait.xyz/js/ckfinder/userfiles/files/90727067895.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 extracted file (font_00_sfnt_off000715ed.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000715ed.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000715ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715ED 19756 bytes
SHA-256: 65e53982212d63f3fa66c004de5c25e1e09522fc6f26f95c74936efa171cd6f4
font_01_sfnt_off00074911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74911 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00076031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76031 10632 bytes
SHA-256: 9a0f3e2bfbdc4021241f1bfe57e187d96dfe142f47d415078c46f6438d0f16fe