Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4dfac4d5a36f1b3…

MALICIOUS

PDF

355.2 KB Created: 2015-08-28 11:31:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c6ec896c7b6974c4a0a85421195dccb3 SHA-1: 0796af9bde42895bda016a7cc2d4c46e9e942aa0 SHA-256: e4dfac4d5a36f1b3c4d77dd9fe78e3370c4f3a7db219340ca2858f38a4987f2f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector at botcraftman.ru. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, and the document body was unreadable.

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%BA%D1%80%D0%B0%D1%81%D0%B8%D0%B2%D1%8B%D0%B5+%D1%80%D0%B0%D0%BC%D0%BA%D0%B8+%D0%B4%D0%BB%D1%8F+%D1%82%D0%B5%D0%BA%D1%81%D1%82%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802361_kak__perevesti__pechat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802382_russkaya__vyaz_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000547bd.bin
465c24241fc6765b0e7970cf47b760392489934cc31f7c29c53aaead736d80bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x547BD 7988 bytes
font_01_sfnt_off00055ee1.bin
eaf55a467160a6a40dc3606d65c212db99f4a4ffdefea232bc55e26d75bd7e93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EE1 14460 bytes

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