Malicious PDF — malware analysis report

Static analysis result for SHA-256 9356b28e242c8726…

MALICIOUS

PDF

348.0 KB Created: 2015-08-21 09:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e64a9172fc069a2b2c7d6e8f565c3844 SHA-1: 829b0591ca5a6271885323301fd5d55e4ec2e832 SHA-256: 9356b28e242c87266c1be759f139a3d24b8e1ce351ef00b8349ad04c224a59d3
92 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 at http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, limiting further analysis of its behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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%81%D0%BF%D0%B8%D1%82%D0%B5+%D1%81%D0%BF%D0%BE%D0%BA%D0%BE%D0%B9%D0%BD%D0%BE+%D0%B4%D0%BE%D0%BA%D1%82%D0%BE%D1%80%D0%B0+%D1%8D%D1%81%D1%82%D0%B8%D0%B2%D0%B8%D0%BB%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BD%D0%B8%D0%B3%D1%83&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654825_skachat_maynkraft_na_android_236.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654723_skachat_the_survivor_rusty_forest_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654857_skachat_sims_4_besplatno_na_kompyuter_bez_sms.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005238b.bin
e4f8f02e317afad5fdcbfc4e187f6f610948f18b3b708981e9025b5f38a8008f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5238B 10432 bytes
font_01_sfnt_off00054066.bin
710cd053709086e4b146ae64ec4ecf163dcf5e0dfeca3f57431ef663cdb80bff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54066 15568 bytes

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