Malicious PDF — malware analysis report

Static analysis result for SHA-256 782e899274b63846…

MALICIOUS

PDF

78.8 KB Created: 2021-09-14 10:10:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: a51e2f2713c46b1b45c08be74961815b SHA-1: 5b2c6999c7deeb1df51bfe0f9208ee1a95e2a686 SHA-256: 782e899274b63846be430662cba24c23f4a1b2a7fc7e7399050ef3631851583c
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://kme.pl/global/app/webroot/uploads/file/16306895132361.pdf In PDF document text
    • http://badaranquehablar.com/userfiles/files/xudajejamoxifinixijuna.pdfIn PDF document text
    • https://awinresource.com/uploadfile/file/92765106227.pdfIn PDF document text
    • https://xn--p3t29jo1ed4o4xw.tw/upload/files/najirotogazigabizizigonu.pdfIn PDF document text
    • http://massvt.sk/editor_uploads/system/files/tonibovinupiwo.pdfIn PDF document text
    • http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/gizekiniwibida.pdfIn PDF document text
    • https://allcondosales.rodeodrivecondosale.com/userfiles/files/vemot.pdfIn PDF document text
    • https://www.nickelmarket.co.za/includes/ckfinder/userfiles/files/lebusuzeparelak.pdfIn PDF document text
    • http://sochisushi.nl/survey/userfiles/files/43490179185.pdfIn PDF document text
    • http://mikllc.mn/uploads/files/86520951520.pdfIn PDF document text
    • http://solarissoft.com/img/userfiles/files/86881769701.pdfIn PDF document text
    • https://theurbanthinktank.com/files/vuraburanidavutitilulewu.pdfIn PDF document text
    • https://commonwealthsportsawards.com/userfiles/file/raguzil.pdfIn PDF document text
    • https://haisanquangninh.org/data/dulieu/files/8088087619.pdfIn PDF document text
    • https://sergiomauri.com/images/file/90394061281.pdfIn PDF document text
    • https://excore.hu/ckfinder/userfiles/files/96475294916.pdfIn PDF document text
    • http://9y.bfage.com/upload/files/20210906135829.pdfIn PDF document text
    • http://travelci.ru/ckfinder/userfiles/files/63982648294.pdfIn PDF document text
    • http://sbsedupatti.com/sbsedupatti/userfiles/file/nafopebasemimipinifurix.pdfIn PDF document text
    • https://femagnet.com/upload/edu/article/file/17769124529.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303b0f0194a---ronutepesubi.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202193_12936_565.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315dba8d200---89110727148.pdfIn PDF document text
    • https://ambalatender.com/upload/files/48116250057.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=chrome+refresh+keyboard+shortcutPDF 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 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_off0000cfac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAC 10976 bytes
SHA-256: 2335650491f2f4e37b9f40fefbb458bb5ee4dd2a432008d92b8d54e76e926245
font_01_sfnt_off0000e94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001015f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1015F 17184 bytes
SHA-256: 9829cf598f9d15a499d55d4c6003f95e712d4c88574d656e55e14e218450b3d4

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