Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd84502141f7d14…

MALICIOUS

PDF

354.5 KB Created: 2015-08-24 01:11:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dbcf28694c27f182dab29fe75b54a81e SHA-1: bac2c6c610174bb3a6f0cbbe870b1e4af489b8b2 SHA-256: 2dd84502141f7d1420fca199cf14e30d2fe4ead3edf83a0d54429aa076c779f8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is flagged as malicious and likely serves as a lure to a malicious site. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly suggest an attempt to trick the user into visiting a harmful domain, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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%B7%D0%B0%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BD%D0%B0+%D0%BB%D0%BE%D0%B3%D0%B8%D0%BA%D1%83+%D0%B4%D0%BB%D1%8F+%D0%B4%D0%B5%D1%82%D0%B5%D0%B9+6-7+%D0%BB%D0%B5%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694720_skachat__wimax__bus_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693627_skachat__banihop__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694306_kak__skachat__pesnyu_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054485.bin
363be2bdad0ae015c8153073a9606360ecfbf35c25aea257460dd5f45881e625		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54485 7832 bytes
font_01_sfnt_off00055b46.bin
4dfedda67a538d184ba2be8109ee09ce70082cd193c5ee673d431a3fd4471b1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B46 15508 bytes

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