Malicious PDF — malware analysis report

Static analysis result for SHA-256 91beb9060e618279…

MALICIOUS

PDF

78.3 KB Created: 2020-12-14 22:13:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: b9777a8e384a2f71d9e787ee35e10494 SHA-1: 3a513e9973671632d317e7611e1e52322dd5185d SHA-256: 91beb9060e618279c74c52e9685d017bf6f25c0be25999a8079910a7490c3964
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically `https://cctraff.ru/aws?utm_term=barclaycard+egg+ppi+claim+form`. This URL is also flagged as an SEO redirector, suggesting a phishing lure related to 'barclaycard egg ppi claim form'. The ML classifier and ClamAV detection further support its malicious nature. While no scripts were extracted, the presence of malicious links strongly suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=barclaycard+egg+ppi+claim+form In PDF document text
    • https://bafejavug.weebly.com/uploads/1/3/4/7/134737311/lazobo.pdfIn PDF document text
    • https://vofadifop.weebly.com/uploads/1/3/4/5/134580142/xedase-lewazuvululegod-wawupa-jevufise.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f872bb12f0e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5fd290a029cd2.pdfIn PDF document text
    • https://gefelamanak.weebly.com/uploads/1/3/4/3/134353999/7145330.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/bajapovogam/winston_water_cooler_texarkana_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d566678f-6aaa-44fd-90e5-29a8746662e0/sopalofizaji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/446de692-03cf-4e5d-8c17-500c8c5606c2/motorcycle_wheel_balancer_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/xexukanokawuzotow.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d9cdc14dfd36fe0adb20/t/5fc697713c02f22b9df3a47b/1606850417176/pinixuzabunib.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/61636761222.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4e4b9ee0f32b874a201d/1606372950977/heart_of_worship_guitar.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_off0000dd6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6B 5448 bytes
SHA-256: aa4f27a0703984d8afc38198f48692242b9a15e9951eaabade4430ccf792ec53
font_01_sfnt_off0000eff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF0 11256 bytes
SHA-256: f727e7f2fb4d4702ea7e21e9023a5cf62c071bb0460b4729a427b0f57377951d
font_02_sfnt_off00011653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11653 16312 bytes
SHA-256: bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939

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