Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcb9bacdf2ad978…

MALICIOUS

PDF

430.7 KB Created: 2022-03-13 16:44:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 3ca9350818f36186a2e72f689f894ffe SHA-1: 5d6649fa94fab0f9dc5d5ee92612cc5fb203129f SHA-256: 3bcb9bacdf2ad9787f1e8b1ddb389bf92bb445cf23dcadf70e96c2198e697ec2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7114

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
  • 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.
  • 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://yubit.co.za/XSRYdR1H?utm_term=happiness+is+the+lord+music+sheet PDF link annotation
    • http://www.cbt-trans.eu/upload/files/29448612924.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/93937310592.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/vukovelututatefujuj.pdfIn PDF document text
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16211320e050ed---kemokesakodoraxegafi.pdfIn PDF document text
    • http://vinaktv.com/storage/ckfinder/files/salozobapexopukejeraw.pdfIn PDF document text
    • https://funbugs.ie/files/file/relasuzuzeredenuxiw.pdfIn PDF document text
    • http://issaproject.com/app/views/panel/ckfinder/userfiles/files/67553467829.pdfIn PDF document text
    • http://forcedainik.com/dbros/public/ckeditor/kcfinder/upload/files/60206893580.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/14670272468.pdfIn PDF document text
    • http://lamekatus.com/uploads/ckeditor/files/zoten.pdfIn PDF document text
    • http://language-coach.pl/uploads/files/90293445108.pdfIn PDF document text
    • http://www.bioengenharia.com.br/public/libs/kcfinder/upload/files/48034705053.pdfIn PDF document text
    • http://terrygallery.com/fckeditor/_upload/file/87899692368.pdfIn PDF document text
    • https://kanalprofi.at/UserFiles/file/16142381458.pdfIn PDF document text
    • https://mtmnetwork.net/uploadEditor/files/25540420854.pdfIn PDF document text
    • https://ahreco.com/uploads/news_file/29118499881.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 extracted file (font_00_sfnt_off0006499f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006499f.bin)
🗂 Part of campaign: aptwash.com 15 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006499f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6499F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000660bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660BF 10872 bytes
SHA-256: d5262bb9985f4aaa182e9d72b11645db5adf78770613ac59607bb589cf50d8a5
font_02_sfnt_off00067998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67998 19344 bytes
SHA-256: 9cf45f58dcfde7e6a75368a1b82b4b5160e6b37a54324e9861fe7f997ae40123