Malicious PDF — malware analysis report

Static analysis result for SHA-256 4457742446053189…

MALICIOUS

PDF

75.3 KB Created: 2021-01-01 14:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-11
MD5: c4c12362ca0d29b74b570d88e1738dcf SHA-1: 804bc686ccf3d1ffa54c181f9bafb38f12f696b9 SHA-256: 4457742446053189ea00cb1ade40ca11cde9513b89cf281d0f902a1ef370d0f0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://traffnew.ru/123?utm_term=heat+transfer+books+india+publication+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413223/normal_5fcecdcb90e13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368996/normal_5fd0fbf1e2aba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5f874d56a9a6a.pdfIn PDF document text
    • https://roxuvipiga.weebly.com/uploads/1/3/4/6/134637137/wijavekijeb.pdfIn PDF document text
    • https://wefejakero.weebly.com/uploads/1/3/0/8/130814310/7036910.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/nokiva/beauty_plus_camera_easy_photo_editor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/074d6a46-4008-4390-b86c-c2156e92db94/popofemuseviguxalako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2b402c3-bb02-4315-af91-09fbfd28f384/23637517760.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/area_of_a_trapezoid_worksheet_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/ableton_templates_techno.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC55 5316 bytes
SHA-256: e70f83f4441735daa4cd16c10f4518eea209cf40e3a7022a826bbc0ffeb95b2c
font_01_sfnt_off0000ee66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE66 2664 bytes
SHA-256: 40d4dbdcc0255b1eff07ae2d61b53bc29a927c1b7aca4abfc6ace0d56ad75950
font_02_sfnt_off0000f9e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E1 11244 bytes
SHA-256: 3517c2aec0f0e73769a3a704b58522813ad6238ad9f4c9a8e92d64980343cf4a