Malicious PDF — malware analysis report

Static analysis result for SHA-256 d64603aed9b7ada5…

MALICIOUS

PDF

64.9 KB Created: 2020-12-19 10:58:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1fc3fcec0ddb4e2d1c8a54102d509bf5 SHA-1: 27349e02a8f47b6654aa9d9c2ef9f38183e0c19c SHA-256: d64603aed9b7ada5847a91c927c8fdc7f092432433f5c4080114df470cae6e92
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to an external URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary IOC is the redirector URL, which is likely used to serve a malicious payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffnew.ru/strik?utm_term=wrought+iron+plant+stands+vintage PDF link annotation
    • https://xubidanata.weebly.com/uploads/1/3/4/8/134895671/jinigatu_dekigesolifor_jezazi.pdfIn PDF document text
    • https://galafiki.weebly.com/uploads/1/3/4/3/134347291/1633705.pdfIn PDF document text
    • https://xasibegofijuga.weebly.com/uploads/1/3/4/7/134731363/monita.pdfIn PDF document text
    • https://jelopujepifo.weebly.com/uploads/1/3/4/3/134341958/b94b33eb.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/193913dc-e81a-455c-bf9b-b386e55948c0/geronimo_stilton_free_ebooks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21b5a4a0-a33f-407f-9892-ef83443daf60/manual_flashback_delay_x4_portugues.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741e55e8-f320-4646-849d-aa16156f2ba9/nba2k13_apk_data.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0eed00f7af3919d5ed67/1606225648833/hide_cells_in_google_sheets.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4fa93affbf90a6604a896/t/5fd6a202de5b1220c034e691/1607901700703/john_wick_3_trailer_mp4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e627116eb00e3c4beed8/t/5fc6e0758f07963615699fb5/1606869109725/muvok.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_off0000bfcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFCD 5292 bytes
SHA-256: ed6f566a4bc7c30f1643d4ec15a93a2eb4515f4cd5b67d4dc1f86b6293479c92
font_01_sfnt_off0000d1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D9 11336 bytes
SHA-256: 22269fe312ed3db21ce1f32b44da3f3cbca253e5d6f4550dbc8feb0e261b478d

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