Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd3bab0f9ce0142…

MALICIOUS

PDF

75.6 KB Created: 2020-12-29 12:24:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-25
MD5: 4e467d2b2b22c836171858c9413233a7 SHA-1: 6c9411c04971b0904f774a4fbf64b98e58bc660e SHA-256: 3dd3bab0f9ce0142ad56982fcf09b895aed82ac06131d2878ba9010e7129efca
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/123?utm_term=funeral+planning+guide+worksheet In PDF document text
    • https://static.s123-cdn-static.com/uploads/4417140/normal_5fcac808a015a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502236/normal_5fda90b6432d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487424/normal_5fd15e57d5a67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464874/normal_5fc0bc78e7c12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413242/normal_5fa343e4e7ffa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501484/normal_5fe9e328c55af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371495/normal_5fca262625d03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374840/normal_5f8a4d8d57570.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/38615099-6ad9-4c3f-b8bf-d0773f69ca7d/2964237704.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acef8005-8590-455a-aea4-e3439fa2c3e5/medical_supply_depot_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68161997-cbae-47f0-8359-f1bda10e8430/somapuwarisifatobomesaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8e07ee5-81ce-4d9c-ad66-6cc80be73d42/57224009168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8580c62-8724-4a15-b5f6-2b6a5c1f4921/operations_management_3rd_edition_kruger.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf4eafea-3d40-486f-a119-cd652c069888/catholic_vows_renewal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2709ae8-1671-43bf-afa1-53318f68b46d/electron_configuration_worksheet.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_off0000e89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89C 5332 bytes
SHA-256: 23376bb9497f6c61f13e33c10f133f85ccdbfd59eccb6b376cc988629febf669
font_01_sfnt_off0000facc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFACC 11236 bytes
SHA-256: 7b081dc67d9336188cfa98849783591c0322bd6c7f8c52e527a63b79a89b17f4

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