Malicious PDF — malware analysis report

Static analysis result for SHA-256 9386f196497c5b89…

MALICIOUS

PDF

70.5 KB Created: 2021-02-25 00:44:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: adfe888b22a20f0f500cb1041788cd41 SHA-1: 9ded8773c06643f368a8b5b33dd7dab21226ead9 SHA-256: 9386f196497c5b89af91c54d3dc0af50c999119823b5a82f11626983b95619c5
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=destiny+2+kinetic+vs+energy PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453118/normal_5fe8864032f93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497109/normal_5ff55b93663dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489415/normal_5fd1a182754fd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/96769426988.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/detailed_project_report_format_for_construction.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/bazutipifuwegojemesit.pdfIn PDF document text
    • https://s3.amazonaws.com/juwofuxufijup/10741047460.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/25137156550.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/mozilla_firefox_browser_for_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/66328291021.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/phenolic_faced_plywood_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/bootstrap_theme_free_for_website.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D6 5084 bytes
SHA-256: 0c7b143919e1d23ec50ce7ce74c743a428892df7adc3ac6f0da6de1c5f15e8bc
font_01_sfnt_off0000e958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE958 10660 bytes
SHA-256: 5564aba36ed0b9e561f25441321cb252ab4891a793810a7d895e107230b8fbf0

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