Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf01db04c1be31b6…

MALICIOUS

PDF

358.1 KB Created: 2015-08-27 23:49:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c6b313f204868b396ff67577a87c5247 SHA-1: 010482916febd30dc03a08979f96f729af9e7ea3 SHA-256: bf01db04c1be31b67d620f5541ea2b3e94eeb60effe9683964fd6578759ffe32
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious activity. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or redirection attempt.

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%D1%83%D1%82%D1%8B%D0%B5+%D0%BB%D0%B0%D1%83%D0%BD%D1%87%D0%B5%D1%80%D1%8B+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D1%81+%D0%BC%D0%BE%D0%B4%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787996_scenariy__vuystupleniya__agitbrigaduy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787896_goluye__podrugi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788132_skachat__muzuyku__klubnyak_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000554cb.bin
6d06bbc582125f510292cdd0a6b4622af220c2a90c63a22e138e7bf47f465a27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x554CB 8520 bytes
font_01_sfnt_off00056d9b.bin
9c25d68a2db6b249a00f7a71d7181812d9cf1a06213650251c2a5427ce4e8ce1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D9B 13524 bytes

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