Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9b9839b4b3736e…

MALICIOUS

PDF

370.1 KB Created: 2015-08-22 09:09:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: fab74f4a832b11527bb84b1155b5ad2a SHA-1: 9fdc114e75ecf04ecee8a781fd8df5ff42ad9b01 SHA-256: 4a9b9839b4b3736e45a976eea1b3024eba5c78480d49768c8253d3a2ad6ea0a9
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 embedded URL, http://botcraftman.ru/..., is associated with malicious activity. This suggests the document is designed to lure users to a harmful website, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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=the+sims+2+-+%D1%8D%D0%BC%D0%BC%D0%B0%D0%BD%D1%83%D1%8D%D0%BB%D1%8C+%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&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674643_yetika_i_deontologiya_v_rabote_mladshego_medicinskogo_personala.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674638_1s_torgovlya_i_sklad_77_dlya_ukrainuy_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674677_podvodki_k_pesnyam_na_koncerte.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000582c6.bin
f6a17874fac78c4353a17a7abe27c341e4101fb3ed27360f3d6400d9bbed0ac4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582C6 8756 bytes
font_01_sfnt_off00059bbe.bin
9f5a75b39dcc11d666a8f5f3ec714e7c966eda8f4032d4ff4ab3cad713698057		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59BBE 14388 bytes

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