Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cbc1eb89f17ad94…

MALICIOUS

PDF

344.9 KB Created: 2015-08-28 00:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 32e669b8d3e9b01497b86760fc002b44 SHA-1: 56bc8934030db4a255aea9cfb9a9c3f470376745 SHA-256: 2cbc1eb89f17ad94735a1b55cb12c0574b74ca758ec8c2c085dfa56ee8e4f486
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector, botcraftman.ru. This indicates the file is designed to lure users to a malicious site, likely for phishing or to download further malware. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2+%D0%BA%D0%B0%D0%B7%D0%B0%D0%BD%D1%8C+%D0%B2%D0%BE%D0%BB%D0%B6%D1%81%D0%BA&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788731_skachat__skayp__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788342_avtobus__moskvasimferopol_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788888_hristianskie__filmuy__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051ea1.bin
b66651ef2d9a02562063b6bcf306e1d1b62598bfd252e8b4b44af013ead6abd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51EA1 7960 bytes
font_01_sfnt_off000535f8.bin
d1a906695a9aef43a147a4464a1fecd5bd5bb7dea50b5b243ebefb4fa352019b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535F8 14564 bytes

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