Malicious PDF — malware analysis report

Static analysis result for SHA-256 42579d6e9e76a9d0…

MALICIOUS

PDF

83.1 KB Created: 2021-09-12 14:20:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 99d7c8a27152b26e4abe9192900eac94 SHA-1: b3f0d940b0499e7e0ab10ab41bcabff2387486a1 SHA-256: 42579d6e9e76a9d07785f9e71b3d81d8ca0b462dfb99d832487d0cbf4482a002
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://inwebjor.ru/uplcv?utm_term=talking+ringtone+maker PDF link annotation
    • http://kvbm.org/pds/userfiles/files/jijepujexonoboxubusob.pdfIn PDF document text
    • http://bsa-billiard.by/images_from_html_editor/file/60731326753.pdfIn PDF document text
    • https://ceccarmaramures.ro/userfiles/file/bilokugivubezurufodefafu.pdfIn PDF document text
    • https://subarini.ro/mm/file/difolakukaw.pdfIn PDF document text
    • http://tsradviseurs.nl/mailing/images/photo/file/fosezesitibizakum.pdfIn PDF document text
    • http://hb1004.com/userData/board/file/tiwasivajinaseda.pdfIn PDF document text
    • http://latiendasegura.com/contable_prueba/userfiles/file/tetosufuw.pdfIn PDF document text
    • https://riosemarescentrodemergulho.com/ckfinder/files/rujenuzuxuvidax.pdfIn PDF document text
    • https://bjjewels.net/nbloom/fckuploads/file/samuvifonumamokanaxu.pdfIn PDF document text
    • http://kubablimel.pl/Image/files/xajolifokudigotifilinu.pdfIn PDF document text
    • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/mugibogerubateva.pdfIn PDF document text
    • http://galaxyjewel.cn/uploadfile/files/borozemaginuloper.pdfIn PDF document text
    • https://textosl.com/upload/editor/file/75214426662.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/51175fa68ec1254b3294d786c8f358d1/84670446495.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/zasaboxagumetoxigukiba.pdfIn PDF document text
    • https://deesudcoolingtower.com/userfiles/file/menerogapazapip.pdfIn PDF document text
    • https://ermolino.mebel18.com/uploads/files/mikulakulutijatikipagip.pdfIn PDF document text
    • https://lyna-garage.com/htdocs/cljr/data/files/jifadirorajapisitixijel.pdfIn PDF document text
    • http://swiss-ex.com/images/blog/file/12377197872.pdfIn PDF document text
    • http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/75449082649.pdfIn PDF document text
    • https://immsac.pe/sgi_userfiles/userfiles/files/27917992409.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/13843304898.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/455af5db70e9eb825c35efe3268b92be/morokine.pdfIn PDF document text
    • https://tvmreza.tv/ckfinder/userfiles/files/zudosarujurupaluzeveb.pdfIn PDF document text
    • http://ilsogno-bomboniere.com/userfiles/files/99815474533.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_off0000e378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE378 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fb8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8F 10340 bytes
SHA-256: a6ee900a17baefd1527ff4e2952d22085173ef56f865ddf608a6716c9e2b657d
font_02_sfnt_off000112da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112DA 16920 bytes
SHA-256: cdfe9cb0b3033243739d7ca482ec4d8f4aa3051c9d469a5ba1b45def013f5acd

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