Malicious PDF — malware analysis report

Static analysis result for SHA-256 651c4abcfb3bf3b2…

MALICIOUS

PDF

372.4 KB Created: 2015-08-21 09:18:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9658ef7be17c17e5d78bdc8c4e6d30fd SHA-1: 3221cf38f7ae93759c756e517912524106131055 SHA-256: 651c4abcfb3bf3b2337bc3de222d62366444b19710e94e118baa18685d9233bc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, http://botcraftcraftman.ru/..., is likely used to redirect users to a malicious site for phishing or malware delivery. No scripts were extracted, but the presence of a malicious link strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%8B%D1%82%D1%8C+%D0%BD%D0%B5%D0%BE%D1%82%D1%80%D0%B0%D0%B7%D0%B8%D0%BC%D0%BE%D0%B9+%D0%B1%D1%80%D1%8D%D0%B4%D0%BB%D0%B8+%D0%B1%D0%B5%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654743_menyu_gruppuy_vkontakte_shablonuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654688_esli_s_rebenkom_trudno_petranovskaya_skachat_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654748_skachat_wallhack_dlya_call_of_duty_4.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058905.bin
2a74f99b6c0eea6c86509f20faf2d62bb35d1efc6a4a1cfb17565e9cbe32f10d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58905 8988 bytes
font_01_sfnt_off0005a2ef.bin
100408e509ddf665d2f2a54b44b2d2f11ad92925b24e5d765ce0137e00af2431		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2EF 15556 bytes

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