Malicious PDF — malware analysis report

Static analysis result for SHA-256 53154ae5c5771772…

MALICIOUS

PDF

351.3 KB Created: 2015-08-25 14:57:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-21
MD5: 8c185a613f279c4869d96b0c4c8f70ff SHA-1: 0e6f8930ec12b0aab80b10ff6617ce5176f61908 SHA-256: 53154ae5c5771772930fad804e9edbb183f3ecdbb56f9c1e01d62b37aa8e1154
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains an embedded link that points to a known malicious redirector. This indicates an attempt to lure the user to a malicious site, likely for malware distribution or credential harvesting. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 2

  • 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 http://botcraftman.ru/?lip&keyword=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D0%BE%D0%B2+%D0%B4%D0%BE%D0%BC%D0%BE%D0%B2&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731749_skachat__film__zolotaya_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731150_ipgeobase_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731849_bob__marley__skachat_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53C0C 7720 bytes
SHA-256: ae97569b33f9b37078d3b2fa10e2332456e5dba6c50ce07ca89c321e28b56e8e
font_01_sfnt_off0005525e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5525E 14404 bytes
SHA-256: 6917e01a15ee27334cde52a6b12a4054b1cec8d99daeabcbf2e59b2d539de745

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