Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d7e9391103c44a…

MALICIOUS

PDF

347.1 KB Created: 2022-03-28 10:09:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 82d05a82570b1c0e7010e2fd931d0e52 SHA-1: 16f2756cfe0b99d6ad6fd741a1ca5985679ba2b9 SHA-256: b5d7e9391103c44ab6b734261430650fb53ed3c1d89ac65eec6466f5e08de72c
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9429

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://fecuq.co.za/XSRYdR1H?utm_term=gateway+usps+com PDF link annotation
    • http://mexxeopaint.com/upload/files/sevogikebodizavoxu.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/81264960820.pdfIn PDF document text
    • https://discovercefalu.it/_data/images/file/fenudijasewobejunasom.pdfIn PDF document text
    • https://bashmak55.ru/ckeditor/kcfinder/upload/files/36914882485.pdfIn PDF document text
    • http://rc-modeller.se/images/file///mirisoraketor.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/db706aada8ce116aeb023667384a7459/16894100847.pdfIn PDF document text
    • https://812423.situshoki1.com/contents/files/boniwasofobowoxiwub.pdfIn PDF document text
    • http://kanalizace.instalace-charvat.cz/userfiles/file/64401447028.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/4866216683.pdfIn PDF document text
    • https://europartner2.pl/uploads/32035146558.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225c681dc437---96605161125.pdfIn PDF document text
    • http://www.barbantie.com.br/admin/plugins/ckeditor/kcfinder/upload/files/nufovegazomamoxutaruzirog.pdfIn PDF document text
    • http://ledseoul.com/userData/board/file/pegunezake.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/notivevudaragiwu.pdfIn PDF document text
    • http://dobrodetel-tula.ru/kcfinder/upload/files/motumekisosoxibip.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_off0004ff13.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004ff13.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ff13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF13 10532 bytes
SHA-256: 68a6d91ba86ac0096cea3c5ad6429291a152a46ce306ba0c21b343e847cc0641
font_01_sfnt_off00051743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51743 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00052e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E5E 18532 bytes
SHA-256: affca98cf0a6ffdb9000d932c80d1afb422767ace641f3ccb7de5f6fba9c117a