Malicious PDF — malware analysis report

Static analysis result for SHA-256 d560aecf9b61501a…

MALICIOUS

PDF

382.1 KB Created: 2015-08-21 09:17:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0fedabe8719bfb9fc6ee0706f448874c SHA-1: 06194d5f9797054fbb8566644a3a9a43b3e76a92 SHA-256: d560aecf9b61501a233dbc4c58c0855fcd54fcaebd65e10e3df66162b28ee272
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%B4%D1%8D%D0%B2%D0%B8%D0%B4+%D1%80%D0%BE%D0%BA+%D0%BC%D0%BE%D0%B7%D0%B3+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D0%BE+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8E+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654704_24_demona_billi_milligana_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654697_ts4exe_skachat_dlya_sims_4.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654691_drayvera_dlya_pleera_qumo_boxon.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a9b5.bin
cb5af0a8353272df038644ed166a5256539de0ec9bb3ba8ed7b386b1ef95a193		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A9B5 9652 bytes
font_01_sfnt_off0005c4f7.bin
afc9ebede9668b1a017994c4ccf1e3653b5842e18b508d0668489395810ab523		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4F7 16704 bytes

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