Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c42b19ddb98ee8…

MALICIOUS

PDF

351.9 KB Created: 2022-02-24 06:27:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 3be2b953ba5451f8c5c9acaf6d135c25 SHA-1: be51892593acac42b9dacd4771e4954db5d12311 SHA-256: 25c42b19ddb98ee8670e874a87bfe7ea8466478c470e9f56bfa6df936bd721e3
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7268

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 http://zezoalza.com/ckupload/files/gixigivobo.pdf In PDF document text
    • http://duetsepolno.pl/userfiles/file/besulipatofakinu.pdfIn PDF document text
    • https://www.lipca.com/ckfinder/userfiles/files/71844113160.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/47757975803.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/ecfc5bf63b899fac8bad9ec3bebcad0f/jusapeweboxesojajoxopikot.pdfIn PDF document text
    • http://www.senioradviserab.se/admin/kcfinder/upload/files/guwumadalumiz.pdfIn PDF document text
    • https://postele-z-masivu.sk/ckfinder/userfiles/files/10987199077.pdfIn PDF document text
    • https://gsm.company/ckfinder/userfiles/files/49396796226.pdfIn PDF document text
    • http://princeverma.in/uploads/files/mudejezipila.pdfIn PDF document text
    • https://torbay.ru/images/uploads/file/95600227046.pdfIn PDF document text
    • http://h-p-n.fr/catalogue_dynamique/file/80861820316.pdfIn PDF document text
    • https://peisheng.org/uploads/ckfiles/files/61b94f48afcf7.pdfIn PDF document text
    • https://primer-spb.ru/files/files/wadidafetefumimufuwew.pdfIn PDF document text
    • https://beruanglucu.com/contents/files/89246087696.pdfIn PDF document text
    • https://scmsgroup.org/ckfinder/userfiles/files/mapuxaw.pdfIn PDF document text
    • http://maasmartcity.com/userfiles/file/87181554952.pdfIn PDF document text
    • https://saptabangunmanunggal.com/indomobils/upload/file/3774754959.pdfIn PDF document text
    • http://duel.pl/userfiles/file/64792823688.pdfIn PDF document text
    • https://almuhja.net/ckfinder/userfiles/files/25786963492.pdfIn PDF document text
    • http://lsbwg.com/ckfinder/userfiles/files/20211117/1902558750.pdfIn PDF document text
    • https://olterus.com/contents/files/tisuderakokemi.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618fa18f250fc---nomazijegefowafodag.pdfIn PDF document text
    • http://isystemlab.com/admin/ckfinder/userfiles/files/rewoto.pdfIn PDF document text
    • http://romengo.com/ckfinder/userfiles/files/pafagojudisine.pdfIn PDF document text
    • http://webminmax.com/userfiles/file/4855207699.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=el+aleph+jorge+luis+borges+libro+pdfPDF 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_off00050995.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050995.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50995 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000520b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520B0 21488 bytes
SHA-256: c55ff27b88275f182ee4c4861312c7d77bc012ccfbe2b1a84fd4b4e640b060eb
font_02_sfnt_off00055723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55723 10928 bytes
SHA-256: 4fc5b80290eecc96da4a39651219b2c5aff889317bf1f3f9a70bc71928083219