Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0c3f025c976a57…

MALICIOUS

PDF

389.1 KB Created: 2015-08-27 23:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: df2b7ab0ff2d5b2ad4595758df5e88ab SHA-1: 6d674110f6c3a538861a73a4fdba3cdca451a2f1 SHA-256: db0c3f025c976a578462654d87998d3064d194f797ad4c956f0ea1f3c5182816
90 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, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%BF%D1%80%D0%B5%D0%B6%D0%B4%D0%B5+%D1%87%D0%B5%D0%BC+%D0%B2%D0%B0%D1%88+%D1%80%D0%B5%D0%B1%D0%B5%D0%BD%D0%BE%D0%BA+%D1%81%D0%B2%D0%B5%D0%B4%D0%B5%D1%82+%D0%B2%D0%B0%D1%81+%D1%81+%D1%83%D0%BC%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+pdf&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787956_programma__dlya__laykov_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787927_kak__razblokirovat__sim_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787839_skachat__word__2007_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ceac.bin
78747d931a2fe2a99e59485e26ad04dfd2e77e2a9e213c9b75fdc5016f4b1c64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEAC 9152 bytes
font_01_sfnt_off0005e8af.bin
fec9bf5566ed58f3fdcdbc15c31a087ef6a5ec838945147ebdc2fe7aa15f4a23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8AF 13780 bytes

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