Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8817c13be21a35…

MALICIOUS

PDF

479.6 KB Created: 2022-02-03 03:50:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 189319ed0d173c7711944234a3e0977a SHA-1: 9d1733ca9e3ce5dda9b9257bcc48917fb3d6034e SHA-256: 5d8817c13be21a35370f6a0e405f67ac8797ee5eb422d50feb626a8803d9cdd1
114 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4616

Heuristics 6

  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=windows+10+iot+enterprise+2016+iso PDF link annotation
    • https://polenhosting.com/calisma2/files/uploads/22830866593.pdfIn PDF document text
    • http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/roxusitivilopewemoviboju.pdfIn PDF document text
    • https://fitness-sport.it/userfiles/file/zubatubizut.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/77182307513.pdfIn PDF document text
    • http://synphabase.ch/upload/file/789075065.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a7b8315284c---17000218801.pdfIn PDF document text
    • http://chinajessie.com/seadata/data/uploads/img/file/163796204791.pdfIn PDF document text
    • http://gzxmbx.com/uploadfile/file/2021092004252073499.pdfIn PDF document text
    • http://gonetcarbide.com/userfiles/file/LianMeng202201051358599335.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/dugiluxotutuwupugaxijataf.pdfIn PDF document text
    • http://www.rarlaw.net/siteuploads/editorimg/file/raluzusezigabasevidam.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/naneju.pdfIn PDF document text
    • http://wronba.com/uploads/wysiwyg/file/98927947314.pdfIn PDF document text
    • http://gensugroup.com/upload/files/2994490940.pdfIn PDF document text
    • http://recviem.ru/img/upload/83346952833.pdfIn PDF document text
    • http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/kopene.pdfIn PDF document text
    • https://godparents4tz.org/home/god/public_html/ckfinder/userfiles/files/20299832513.pdfIn PDF document text
    • http://9topia.com/js/kcfinder/upload/files/32387910363.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/savaluvopefosununiposom.pdfIn PDF document text
    • http://raylutickenterprises.com/userfiles/files/pasiwetowutozijebativop.pdfIn PDF document text
    • http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/nituxabudidifumasa.pdfIn PDF document text
    • https://dienmayngalinh.com/img/files/xodawokiwutiziwetalujiru.pdfIn PDF document text
    • https://cm2aum.neworg.com/userfiles/file/77015437172.pdfIn PDF document text
    • http://phuongdonggolf.vn/app/webroot/uploads/files/74692337258.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/selanotuzibutekip.pdfIn PDF document text
    • http://daydeothe.vn/rich_editor/file/sedib.pdfIn PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/6bc25123203a74e493cbe83a2019a3a6/68740698281.pdfIn PDF document text
    • https://perfecthospital.org/FCKeditor/file/zudotiti.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_off00071170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71170 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00072890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72890 10716 bytes
SHA-256: 4ce98afea96fa86d2ef3d74005c8cb548d09df378b3d83b1421c2c25c65f29f4
font_02_sfnt_off00074163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74163 17348 bytes
SHA-256: ae8579abf6f6101b9c80a7463052320c5852fb09bf727de6478728d28e5c6069