Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca24dad1ffdd8139…

MALICIOUS

PDF

361.0 KB Created: 2015-08-29 13:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3a3934a21aa8c7eac0cff0db744e2480 SHA-1: 4023b29ae4093e9647fb9e591a7ea87f2bca82bc SHA-256: ca24dad1ffdd8139c24b4cf2b0ad7b3115331caa97e89e878988032f3b8a8e42
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also flagged it with high confidence. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content.

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=stalker+%D1%82%D0%B5%D0%BD%D1%8C+%D1%87%D0%B5%D1%80%D0%BD%D0%BE%D0%B1%D1%8B%D0%BB%D1%8F+%D1%82%D1%80%D0%B5%D0%B9%D0%BD%D0%B5%D1%80+10004&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830281_sims__3__70e_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831301_skachat__chituy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831468_skachat__igruy__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000558af.bin
49573ffe1333005469892a7ffa99564b2cc1f0d73a1498b7682060b2d3e94e3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x558AF 8836 bytes
font_01_sfnt_off0005715d.bin
927d5bc19fcfd3967af5242ecf0fbe293c1c225a454b885cd06fc11bb40a1a65
pdf-font-stream PDF embedded font (sfnt) at offset 0x5715D 16488 bytes