Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5ecc2a73d1dccba…

MALICIOUS

PDF

349.0 KB Created: 2015-08-27 10:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b3272dacae2a6a5b008131f543518f20 SHA-1: 87a1547b968b4b638aa4d0232272e019305ac953 SHA-256: e5ecc2a73d1dccbaf681bbbcea15bc1f89d3b0f6927ce28205f8bc670a9867ef
90 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary malicious indicator is the redirection to botcraftman.ru, suggesting a phishing or malware delivery 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%91%D1%83%D0%BA%D0%BB%D0%B5%D1%82+%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B+%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://img1.liveinternet.ru/images/attach/c/7//4771/4771787_primeruy__professionalnuyh_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772215_adobe__kuler__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771873_dwarf__therapist__rus_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052bc6.bin
e4e8fbf4da76b732a5d63a688a128a552db11f21d31e9e0d6903f7221daf5b31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52BC6 9656 bytes
font_01_sfnt_off0005463c.bin
84f622519667c7563e60b5c434b4132747919b29916254de7b6d80dd19732e02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5463C 15216 bytes

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