Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d35738a5effdc8c…

MALICIOUS

PDF

218.6 KB Created: 2022-04-12 13:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 719fb67761a5731bf2bb9551fa1987b9 SHA-1: a1a4a8f2120447dafb936416764dcc3b8ac2851a SHA-256: 5d35738a5effdc8c0b062d9287963e69ac0ba61520b3f4497798ff0187e5ddf8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9645

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://oasis-travel.ro/files/8611955129.pdf In PDF document text
    • http://sashtraayurveda.com/ckfinder/userfiles/files/lemejabidusofimadajotobeb.pdfIn PDF document text
    • https://tusagenitig.weebly.com/uploads/1/3/1/4/131452801/vukitinikokin.pdfIn PDF document text
    • https://bigsao.com/kcfinder/upload/files/68083741093.pdfIn PDF document text
    • http://akatumusics-ang.communication-pro.fr/public/1283/contenu/file/kuguz.pdfIn PDF document text
    • https://suredowatoma.weebly.com/uploads/1/3/4/7/134762200/9f765b3630a.pdfIn PDF document text
    • http://goksirkrupskimlyn.pl/img/upload/files/60427350140.pdfIn PDF document text
    • https://fopudodesesiwen.weebly.com/uploads/1/3/4/3/134344932/4358652.pdfIn PDF document text
    • https://ninekezabuj.weebly.com/uploads/1/4/1/2/141260165/9823190.pdfIn PDF document text
    • http://7seapharmtech.com/Uploadfiles/files/28372490744.pdfIn PDF document text
    • https://zudejafig.weebly.com/uploads/1/3/2/6/132681624/8d1e94c270.pdfIn PDF document text
    • https://duzetokip.weebly.com/uploads/1/3/4/4/134404829/4668927.pdfIn PDF document text
    • http://toyotarent.hk/FileData/ckfinder/files/20220323_B35DA839D4ECF526.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/xagumelerebodisatijutawif.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=reading+piano+sheet+music+sharps+and+flatsPDF 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_off0002f38e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002f38e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F38E 19960 bytes
SHA-256: d35c134407ac64883702bdebe663c1b3662a5cd35ffe6a509d8941af57cb9772
font_01_sfnt_off000328b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328B7 11212 bytes
SHA-256: f9d8b7efce46411c7ad2333232e09972ff80aacbe82a7b3f6f83cfb30feb6eaa
font_02_sfnt_off00034285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34285 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1