Malicious PDF — malware analysis report

Static analysis result for SHA-256 2799216c304a9a57…

MALICIOUS

PDF

353.1 KB Created: 2015-08-26 09:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 96f5680a45a4a48812ac5d1bba7ce3bf SHA-1: b13aa4fa80c5ff67e885ffd8102865033bf89de8 SHA-256: 2799216c304a9a579698114a0aaac2bc6ed6c8805b2689da25f10125a84fbba1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This heuristic firing, combined with the ML classifier's high confidence score, indicates the document is designed to lead the user to a harmful destination. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%BC%D0%B8%D0%BB%D1%8B%D0%B5+%D0%BE%D0%B1%D0%BC%D0%B0%D0%BD%D1%89%D0%B8%D1%86%D1%8B+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751675_deming__vuyhod__iz_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751722_otvetuy__k__igre_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751462_skachat__dzheylbreyk__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f1b.bin
5e30aa15a568ea162718efcaa0ad1c1f9a012ed52293b3e61c69ce60716117ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53F1B 8292 bytes
font_01_sfnt_off00055728.bin
b1a26c26ed0e77008cd18eaf15a95855b5c8891d5f8e7961d7b579ba3b4b8f29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55728 14428 bytes

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