Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca79c95b658eb14…

MALICIOUS

PDF

370.2 KB Created: 2015-08-19 14:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c616f35ad81917832380fc17e2313399 SHA-1: 3ebe9e30182e3fe01045efec36e364eb68a5407e SHA-256: 5ca79c95b658eb14ac87d61bb0674e8570f809a35b2b1ae2a2b6dd1495c92a8a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the embedded URL is sufficient evidence to classify this as a malicious redirector attempt, likely serving as a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4+%D0%BD%D0%B0+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+164+%D0%BD%D0%B0+%D0%BE%D1%80%D1%83%D0%B6%D0%B8%D0%B5+%D0%BC%D0%B0%D1%88%D0%B8%D0%BD%D1%8B+%D1%81%D0%B0%D0%BC%D0%BE%D0%BB%D0%B5%D1%82%D1%8B+%D1%82%D0%B0%D0%BD%D0%BA%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626601_makrosuy_na_x7_warface_strelba_bez_otdachi.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626445_igruy_prestolov_5_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496737_samouchitel_levina_android_na_planshetah_i_smartfonah_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058027.bin
f119cd0cef188239d091e9e0dc5a5fa264d148c9cdec14b7063a1cf8e4cb8410		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58027 10404 bytes
font_01_sfnt_off00059ea7.bin
0d4f15815de59e310c78f6fd7c466802753342598f8909d5de22adfcfb074006		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59EA7 13824 bytes

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