Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d52f0680dc9af4…

MALICIOUS

PDF

351.9 KB Created: 2015-08-25 22:05:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bfb09f8f4f3d2a3e6ffc439b44496840 SHA-1: 543a14cfdff8d0147ef4a8d8fa084960e2b56eaf SHA-256: c9d52f0680dc9af4e636861f0cadc71acf0e48285cd23a128674f3fc12a5705c
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 link to a known malicious redirector. The redirector URL is http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, and the document body was unreadable, limiting further analysis.

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=%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0+%D1%88%D1%83%D0%BB%D1%8C%D1%82%D0%B5+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740551_klyuch__dlya__igruy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740552_skachat__minecraft__multi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740550_skachat__3d__instruktor_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005355a.bin
54e5028158776208de318371d47d47876b5e49251691bd35ad54c683bb24d507		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5355A 8040 bytes
font_01_sfnt_off00054c78.bin
82a9e6bc7e9d875be9a0fd46505a25af53b16533cebea4be948262ee5175a84b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54C78 16824 bytes

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