Malicious PDF — malware analysis report

Static analysis result for SHA-256 4453f42e0edf6d4d…

MALICIOUS

PDF

78.8 KB Created: 2022-04-30 20:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-11
MD5: 67efd36910b700fea9a1cae9bed4151a SHA-1: 54db0bc5414af63c4978c899edc5f51ad35f8e9a SHA-256: 4453f42e0edf6d4dea9afc3864ad4de3a5329fc0db580c0d1be86186ba6e2f8f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cafij.co.za/YmrXLWy8?keyword=into%20the%20heights%20song%20list PDF link annotation
    • https://electrodomesticaruano.com/images/ckfinder/files/1392480610.pdfIn PDF document text
    • https://fong-cai.com/upload/files/14518999494.pdfIn PDF document text
    • http://smartpaintingplus.com/userfiles/files/32211345462.pdfIn PDF document text
    • https://yakin-surewin.com/media/file/732569149.pdfIn PDF document text
    • https://faranopiz.weebly.com/uploads/1/3/5/3/135332407/3754395.pdfIn PDF document text
    • https://jackyrouxmethode.com/userfiles/file/21014263007.pdfIn PDF document text
    • http://tantex.org/tantex/tantexuserfiles/file/90583249550.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/71985397598.pdfIn PDF document text
    • http://sumisaedu.com/FileData/ckfinder/files/20220409_A9BDB7596508F4A7.pdfIn PDF document text
    • https://minhgianggroup.vn/upload/files/mureb.pdfIn PDF document text
    • http://ep9.cz/kcfinder/upload/files/gifoj.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/74103c861.pdfIn PDF document text
    • https://xavupavise.weebly.com/uploads/1/3/4/5/134584264/496898.pdfIn PDF document text
    • https://casaalu.com/luutru/files/33371166776.pdfIn PDF document text
    • http://sparan-art.ru/ckfinder/userfiles/files/fagekiwirabo.pdfIn PDF document text
    • http://crislbd.com/public/admin/assets/ckeditor/kcfinder/upload/files/dorexemedujipajewigokoti.pdfIn PDF document text
    • http://studiodrago.eu/userfiles/files/joduxavufilase.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624a7d46cfcd4---2282154340.pdfIn PDF document text
    • https://lewanodeb.weebly.com/uploads/1/3/4/8/134885095/gakadasixogaj_tafonuver.pdfIn PDF document text
    • https://vumiluvitut.weebly.com/uploads/1/3/2/6/132696113/pigobok.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_off0000d138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD138 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94A 17940 bytes
SHA-256: b84ef9f42d5cdc1ae471b72a2c8d6ac0a2800cb138f5d7785441c6ba953b8691
font_02_sfnt_off000117b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117B0 10076 bytes
SHA-256: ae91e98f1ad169a8b55516a5800044f0c6293698e17182766996dddae651a87b

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