Malicious PDF — malware analysis report

Static analysis result for SHA-256 956dc07cb1a0f579…

MALICIOUS

PDF

340.9 KB Created: 2015-08-28 18:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ed59d3d511e6269a1824223994b1fabb SHA-1: 95ea78aab886b15fa689e1704378574f4f449038 SHA-256: 956dc07cb1a0f579eadfcd91660939cf2ec0fb2a337cd00f693a138c8ec97abe
92 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, http://botcraftman.ru/. This indicates the file is intended 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. No scripts were extracted from this sample.

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=%D0%B8%D0%B3%D1%80%D1%8B+%D0%B0%D0%BB%D0%B0%D0%B2%D0%B0%D1%80+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%BE%D0%BB%D0%BD%D1%8B%D0%B5+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809838_ticket__to__the_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810179_samuyy__znamenituyy__iz_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809898_ne__udalos__vosstanovit_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050b9e.bin
8963609f6ed76e9229b397ba6ba1066139237aab28130f5f1757dd402c088ae5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50B9E 7348 bytes
font_01_sfnt_off00052091.bin
a8cb815f93acaaf66e9c5773591a9819ffeefd4134765f2ca0e8c69c886d23d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52091 17000 bytes

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