Malicious PDF — malware analysis report

Static analysis result for SHA-256 76ab964a28ba2df7…

MALICIOUS

PDF

404.5 KB Created: 2015-08-19 14:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2d77938166d69b6ef603d5b88e78cd4a SHA-1: 0b80132d61614ea063d3a93464c07bf54cc595e3 SHA-256: 76ab964a28ba2df76006eb48e411edd4ba356f6ff887cea9b49a73eee36b032a
90 Risk Score

Malware Insights

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

The PDF file contains an embedded link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The primary malicious indicator is the URL http://botcraftman.ru/, which is likely used to deliver a secondary payload or redirect to a phishing site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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%BB%D0%B8%D0%B7%D0%B0+%D0%B4%D0%B6%D0%B5%D0%B9%D0%BD+%D1%81%D0%BC%D0%B8%D1%82+%D1%86%D0%B0%D1%80%D1%81%D1%82%D0%B2%D0%BE+%D0%BD%D0%BE%D1%87%D0%B8+10+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%BD%D0%B0%D1%8F+%D1%81%D1%83%D0%B4%D1%8C%D0%B1%D0%B0+%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//4496/4496749_darya_dezombre_prizrak_nebesnogo_ierusalima_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626616_igo_primo_2015_dlya_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626503_tayna_proklyatogo_gercoga_elena_zvezdnaya_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060163.bin
13a0aa99f7eb6c1577baad4b57a5a82bc5f529755f7cd91be8e45999e2458694		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60163 10668 bytes
font_01_sfnt_off000620aa.bin
1662a79bb2897caa4ada82d5bc8d2c26c2b35eddc0eaf252d2da06e9f8ac7953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620AA 16032 bytes

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