Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3f259d4ddbe365…

MALICIOUS

PDF

72.1 KB Created: 2021-10-13 10:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 7a2597aeda29d17a10e61c8ecb2a4667 SHA-1: ea8339e08933db67de828a022af0606f565560d0 SHA-256: 5d3f259d4ddbe365dfb1fd0ebae0f5ee5be8d271b416065aaa9e8832ea8abe83
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://n95america.com/wp-content/plugins/super-forms/uploads/php/files/045bce951fea981b1f05a0cf7c36ad04/2289908403.pdf In PDF document text
    • http://huh.hu/UserFiles/File/nekinevutazetokimefefome.pdfIn PDF document text
    • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/1905601015.pdfIn PDF document text
    • http://laros.cz/UserFiles/file/77100089200.pdfIn PDF document text
    • http://cycling-software.com/files/file/befewowazanob.pdfIn PDF document text
    • http://knowleangling.co.uk/ckfinder/userfiles/files/tefixafafumop.pdfIn PDF document text
    • http://asqcert.net/files/files/7864623935.pdfIn PDF document text
    • http://chanakyaaerospacedefence.com/userfiles/file/maritalidapakisegegitim.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161337a9eec076---75422151519.pdfIn PDF document text
    • http://foxadv.net/file/77830266186.pdfIn PDF document text
    • https://www.area-tlc.com/public/ckfinder/userfiles/files/58273509647.pdfIn PDF document text
    • http://beccaro.it/userfiles/files/78483173352.pdfIn PDF document text
    • http://getem.eu/files/file/xexadewujukurakezejufidur.pdfIn PDF document text
    • https://xn--pssa17sw71b.tw/upimages/files/filafudanatugek.pdfIn PDF document text
    • https://detector-billetes.com/Imagenes/file/17772218723.pdfIn PDF document text
    • http://outspokenholland.com/userfiles/fckFile/20210922224941.pdfIn PDF document text
    • https://joebalogh.ro/imagini_ws/vedur.pdfIn PDF document text
    • https://seo-methodes.com/userfiles/file/44784910912.pdfIn PDF document text
    • http://perfekt-dom.pl/designhome/admin/userfiles/file/nebaxokifadigevus.pdfIn PDF document text
    • http://handgun.ee/media/file/mexazu.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/92523107339.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/dipanogadakaxe.pdfIn PDF document text
    • https://datatech-int.com/userfiles/file/zanetujuregigasafaperin.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/cmwvf4RlXg4/uplcv?utm_term=insert+image+into+pdf+form+fieldPDF 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_off0000b55f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b55f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB55F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cd71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD71 17216 bytes
SHA-256: 1d699760f4e97049de0026e7f9f7283795c6806fccba5e7bd282dcb1a7ae1f56
font_02_sfnt_off0000fa63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA63 10792 bytes
SHA-256: 493f14ffe35bafa487ae97426f6d39b58729a3446b5f5113500cfea638bf0d9c