Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd79559b4e5b9c58…

MALICIOUS

PDF

70.8 KB Created: 2020-12-02 22:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 98060787a2022cccddd043f2fa2702a0 SHA-1: 1880b96a5d5f4466ebdce8a2f6871be763955a99 SHA-256: cd79559b4e5b9c584814f771148f0d996d72ec11292f7e3d061438077edb2815
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/wb?keyword=define%20slip%20sheet%20roofing PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393208/normal_5f93df574011b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415309/normal_5f95846d1424e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f97680fec6ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372361/normal_5f8bb207d87bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372360/normal_5f9b64541899e.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/xopugup/89854155693.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/fundraiser_goal_thermometer_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1015360f2895dc1e86a3c/t/5fc194459b1ed0353817cd82/1606521935438/dansville_high_school_graduation_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/agatha_knife_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfbf66c7-1f80-4aa0-8369-038dfa490a57/ottlite_executive_led_desk_lamp_manual.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_off0000d615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD615 4952 bytes
SHA-256: a87b6e2adff5b513f1e85dc5d9218cf1447f290805d798cf145654fd78b313fd
font_01_sfnt_off0000e6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F7 11788 bytes
SHA-256: 47d17b16833a0fc5e7c6aa6850917e54d0d4fd094efaf256dd8361d818165a95