Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc3daac789dad1ae…

MALICIOUS

PDF

372.7 KB Created: 2015-08-23 20:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2020-12-25
MD5: 0946f8b9f02207a088c658ab9c171608 SHA-1: cdebf9b50b5ee9cec7c65cc05cb2176a72d9af17 SHA-256: bc3daac789dad1aec2437639cbc233a6c49754eb1d03d29b8a75c7c726e7bc73
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector, botcraftman.ru. This indicates the document is likely part of a phishing or malware distribution effort. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly suggest an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%D0%B0%D0%B7%D0%B0+%D0%B0%D0%BA%D0%BA%D0%B0%D1%83%D0%BD%D1%82%D0%BE%D0%B2+wot+%D0%B4%D0%BB%D1%8F+%D0%B1%D1%80%D1%83%D1%82%D0%B0&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690057_dubstep__piano__skachat_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690061_chituy__na__szone_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690040_obrazec__dopolnitelnogo__soglasheniya_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58ABE 8272 bytes
SHA-256: 940e794d111563ad5d425d12d15ac1a161b50b6051f215375ba641459474bb81
font_01_sfnt_off0005a25c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A25C 16052 bytes
SHA-256: 22d597d34ec61dc0edc8c880d9db28e0989be8baf76791c66d61a4141e276dc8

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