Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2a4a53d3983d34…

MALICIOUS

PDF

55.2 KB Created: 2020-12-05 16:53:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3779f8b3981bfc565c744220b267a068 SHA-1: 98ecc175d4a945149880cfb018b41fe841021cbc SHA-256: 6e2a4a53d3983d34ff2f3d8e82ab1d83e950daa363875a17cad447f545022197
152 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 for a malicious redirector link pointing to 'https://traffmen.ru/strik'. This indicates the document's primary purpose is to lure the user to a potentially malicious website. The ML classifier also flagged the PDF as malicious, supporting this assessment. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to exploit the user via redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7874

Heuristics 3

  • 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.
  • 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://traffmen.ru/strik?utm_term=requirements+of+pharmacy+management+system In PDF document text
    • https://movireralu.weebly.com/uploads/1/3/4/8/134879142/polomonumu-xegidulomivuwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401691/normal_5fae98dccb837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486778/normal_5fb8f51fa7a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479436/normal_5fbf7b7c1812a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456143/normal_5fba4b472295d.pdfIn PDF document text
    • https://bavifogo.weebly.com/uploads/1/3/4/5/134524367/pozekokav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408853/normal_5f9be5eaf3868.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e9e3bda9c57a97be47bf/t/5fc70eeda907d7439cd1e337/1606881005737/commander_legends_spoilers_precon.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe074d61e25426e1ffe392/1606289237945/pawitunuviwigegexedita.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf675b645712565433286c/1606379356855/homestretch_sweepstakes_kentucky_derby.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e10e2e34347c705dc52c/t/5fcac11e6107f55fa9ad4c26/1607123231019/optical_illusion_drawing_videos.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC47D 5632 bytes
SHA-256: 5b60579745060b2a274ad79e1cdd88454c9b21b1e0fd2ec5b96d31bef3be8b18

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