Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a147a124fd30186…

MALICIOUS

PDF

372.2 KB Created: 2015-08-29 11:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-24
MD5: 81f5f33e5f1076bc61ac40966a6a9cad SHA-1: 8cafb8e7b1312d124d6d0cf378b1d7e2f01d7789 SHA-256: 8a147a124fd301869f2158c84209824d54f9b75a7725e285494d78043ac06b05
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link, pointing to botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful site. Although no scripts were extracted, the presence of the malicious URL and the ML classifier's high confidence score suggest a malicious intent, likely to deliver a secondary payload or phish for information.

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%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B+%D0%BC%D0%BE%D1%80%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B2%D1%80%D0%B5%D0%B4%D0%B0&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829898_bonus__koduy__dlya_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830027_klyuch__na__gta_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829990_notuy__vesnyak_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FC0 7556 bytes
SHA-256: 5be227b97324ade78cd98217c71e3c3396c538b4cf0c90a2b917a2b93358c16f
font_01_sfnt_off0005a53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A53F 14028 bytes
SHA-256: d4b4a8b56c042cea80f6f4a217d2ac2ebe52549c0a7fc1cbcbbad9fec938a5f1

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