Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3cf257e8a31b0f…

MALICIOUS

PDF

65.6 KB Created: 2020-11-20 00:24:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 919d1d706a3c1c9194aafb680c4ee291 SHA-1: 288864a379f24b9e324df93d417c5fd19ed88f30 SHA-256: 0d3cf257e8a31b0fc8881da3e3b874c9c802cfcf32bb33e1f049a6885eb4512b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://gettraff.ru/wb?keyword=analytical%20solid%20geometry%20dipak%20chatterjee%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378608/normal_5fa950827daf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374686/normal_5f8987ca7cc45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448096/normal_5fa5aa868ec4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410703/normal_5f932bfa38111.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8ca8efcbd45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368230/normal_5f9d9419b5552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f8a249121107.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424632/normal_5f9b64cad6607.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384045/normal_5f90b2050b551.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/be01e9ae-7aa4-4107-8c9d-cdbd0a251e66/bexudawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eb8dc0c-c699-4c19-a67c-f4d27d8c2bd4/mabesopefuzodirukomasi.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/christmas_table_runners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbc87f4c-6629-40c2-819b-675f26f475be/25149540188.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/cameramanager_android_developer.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/65141927243.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAED3 5800 bytes
SHA-256: 4288d21977720e43d8d1ac85d3529071bf80beb1d6f132502cc88ae124384976
font_01_sfnt_off0000c27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC27D 9740 bytes
SHA-256: 5ab9ca33382cfadc01d46590c8a2185a5aa7303cfb0fbc0a2992855bd7671ab4
font_02_sfnt_off0000e3e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3E3 16164 bytes
SHA-256: 0d7a92828fb34c46272def7401d297891c72c028a4bdfa4d2814ce18bde6b281

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