Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa68c7d43f0a633…

MALICIOUS

PDF

337.8 KB Created: 2015-08-25 12:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e8bc9f3489875d5d56ad393407261d93 SHA-1: 4f4d50289876b290f9f6f15d9030f57c3ebf1c19 SHA-256: 2aa68c7d43f0a6337e4e71ee42677938c5439e5e7c5b5f0843d103fc7cd0cbb1
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This heuristic indicates the document's primary purpose is to lure the user to a potentially harmful site. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the exact lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%84%D0%BE%D1%82%D0%BE%D1%88%D0%BE%D0%BF+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%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/6//4727/4727278_skachat__chit__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4728/4728122_zhirnaya__picca__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725140_stalker__naemnuyy__prizrak_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005015f.bin
556b9a3411531f8fd8ea23b28715585670cfc7cb90dc4c62a5c33ec95ec5dc12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5015F 9620 bytes
font_01_sfnt_off00051b91.bin
7328f6eb192c5c53c05bc03559aa0d0661f65fa1bef3f1075e51785c3b79eaa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51B91 13680 bytes

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