Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6012f7bb9c63b6…

MALICIOUS

PDF

363.2 KB Created: 2015-08-28 11:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2fdfe5feb3a3b3797578d7e59fa89030 SHA-1: d3beadad463a9cac09a7e702881b4d96b93994dc SHA-256: af6012f7bb9c63b6d2cb548e94b0a4d3415c93fe6a2749a960f95d2c7da00fa4
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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%A2%D1%8E%D0%BD%D0%B8%D0%BD%D0%B3+%D0%B4%D0%B2%D0%B8%D0%B3%D0%B0%D1%82%D0%B5%D0%BB%D1%8F+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D0%B8%D1%87+412&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802644_polnoe__prohozhdenie__fallout_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802740_nakrutka__laykov__vkontakte_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802669_sektor__gaza__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056655.bin
189c4e1a8d7202fc3423abcad27b9fe93dee9c925a7ec3b558891bc4b392b654		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56655 7864 bytes
font_01_sfnt_off00057d1e.bin
3dbe60c789cbaff733b2c5031dd9256b31f7090b6029bc5037a556082b681d6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D1E 15372 bytes

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