Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d9a267f543cc876…

MALICIOUS

PDF

167.6 KB Created: 2020-11-11 15:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2175a267a249f85f2685adc3e2d8cb17 SHA-1: 8c7e3fbeaab67c8bdac9f124167125a8f06bf7f4 SHA-256: 9d9a267f543cc87624d77113a338853e58e5734b53ef0956be7699c87e4ae1b0
194 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 malicious redirector, specifically designed for phishing lures. The embedded URL 'https://cctraff.ru/123?utm_term=millridge+elementary+school+danbury+ct' is flagged as malicious and used in an SEO phishing context. The ML classifier and ClamAV detection strongly support its malicious nature, likely serving as a lure to download further payloads.

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
  • 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=millridge+elementary+school+danbury+ct In PDF document text
    • https://danevetiwa.weebly.com/uploads/1/3/4/6/134600357/pomonusuxijozosigax.pdfIn PDF document text
    • https://fonaduwi.weebly.com/uploads/1/3/4/3/134366998/00a78.pdfIn PDF document text
    • https://sefusozikoju.weebly.com/uploads/1/3/4/3/134366316/06b89483.pdfIn PDF document text
    • https://sopulekazixov.weebly.com/uploads/1/3/0/7/130776801/0bc07ec940b882.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/susopuzupure/sunni_aqeedah.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/emerson_lc320em2_driver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b59efd29-6e3f-4f4a-96eb-5c3a727f1d14/seviro.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/5.70-8_tire_size.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/81902868566.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/govedabekiji.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/dealing_with_scabaras_rs3_quick_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a97fdf72-41d1-488c-921e-64fbddd4f251/the_kiss_quotient_free.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_off000258b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258B0 5600 bytes
SHA-256: 45b2fa93baea40cfa3e0d943eb7cafc2e9f5e7dc1cbf99f1fa6eff56321b3af6
font_01_sfnt_off00026b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26B99 11148 bytes
SHA-256: 05ea121f4ea481166cbb85fb849940451c4e6db9afaab4a88dcb16d7d966c0e7

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