Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c8326eb34ee1c2b…

MALICIOUS

PDF

392.7 KB Created: 2015-08-21 09:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bdacaf2d5f6557d24df2197bd77ead80 SHA-1: 6712ca24b40798d13dd9088cefb4c44c7650c87c SHA-256: 1c8326eb34ee1c2b93d4407e2343c0b88945cf4442b6db050cea407f29187069
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, http://botcraftman.ru/..., is associated with known malicious infrastructure. This suggests the document's primary purpose is to lure the user to this external site, likely for phishing or to download further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.0737

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D1%83%D0%BB%D1%8C%D1%82%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D1%85%D0%BE%D0%BB%D0%BE%D0%B4%D0%BD%D0%BE%D0%B5+%D1%81%D0%B5%D1%80%D0%B4%D1%86%D0%B5+2013+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005da66.bin
649b8638500a3dfa4ebd904cb45d16fa763f15533d0cb69fb08141f95a5fbab3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA66 9880 bytes
font_01_sfnt_off0005f743.bin
52baa5a2c2bb560058cb1e2f835ef919da2b072ad28fd27da02083ef24cd144f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F743 13732 bytes

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