Malicious PDF — malware analysis report

Static analysis result for SHA-256 425febc8b4f6abf5…

MALICIOUS

PDF

279.2 KB Created: 2022-04-11 21:05:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 397d13ca34f9df83314a9aab52ff624f SHA-1: 8a098bd3241973ff6ea2a6d62251004a07ec421b SHA-256: 425febc8b4f6abf55dc992e9bc6be2852f614759b32a8ab09743b9dbda506495
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8431

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://wirut.co.za/XSRYdR1H?utm_term=direito+penal+esquematizado+2018+dow PDF link annotation
    • https://huangs.tw/uploads/files/202202031504126499.pdfIn PDF document text
    • http://tajesink.com/Uploadfiles/files/sarumarupibeturonemix.pdfIn PDF document text
    • http://airholic.com/UpFiles/WebEditorFiles/file/goferifotavotafadipibiko.pdfIn PDF document text
    • https://lomewulepizava.weebly.com/uploads/1/3/3/9/133999744/2152108.pdfIn PDF document text
    • https://marcuspietrek.de/MARCUS/files/file/73256484032.pdfIn PDF document text
    • http://becucci.it/userfiles/files/94144183188.pdfIn PDF document text
    • http://vidiniaibreketai.lt/userfiles/file/56396143132.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/202245144776294.pdfIn PDF document text
    • https://taipeitccia.org/CKEdit/upload/files/pajiwufikikegir.pdfIn PDF document text
    • https://ever.dacola.com/upload/files/begig.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/4122706134.pdfIn PDF document text
    • https://zikenanevo.weebly.com/uploads/1/3/4/5/134589255/dorelejazifutejob.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/4ddd749a1cb12ef7b1bfc9eb35ddb384/56787478720.pdfIn PDF document text
    • http://ci-tesco.com/kcfinder/upload/files/puwog.pdfIn PDF document text
    • https://forerijekakifur.weebly.com/uploads/1/3/5/4/135401119/zegigufojulap-fugibex.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/45303934651.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/ee117932febbf4925c8054fc99528204/jadozevivarubikobitu.pdfIn PDF document text
    • http://autoshiftbid.com/fckeditor/userfiles/file/nowitamotesujemad.pdfIn PDF document text
    • https://e2imgu.ratnatelenet.com/UserFiles/file/99589691927.pdfIn PDF document text
    • http://centonze-vini.com/userfiles/files/bopisosi.pdfIn PDF document text
    • http://bfup.org/ckeditor/kcfinder/upload/files/tebewivazulafedubalajoki.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_off0003e6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E6EB 20856 bytes
SHA-256: 4eb0f349586418894f3191a7138dc17e78d9e1fce0c4f88d4f224d230e2e7fd3
font_01_sfnt_off00041b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41B16 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0004332d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4332D 11448 bytes
SHA-256: 515080b8d10508d5435f337ba0f057aed12858098a3328388914ee20daa27078

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