Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd0f37998a67786…

MALICIOUS

PDF

355.5 KB Created: 2015-08-29 01:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ff9128beab6b4193319c304fe0abb4f2 SHA-1: 702c67e943cc49aaf951a62c70c2a8b0aee6570c SHA-256: 0bd0f37998a6778641dce8006ef61a659d67495639e33174d5cffd895b684eb3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged the document with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B3%D0%BE%D1%82%D0%BE%D0%B2%D1%8B%D0%B9+%D1%80%D0%BF+%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+%D1%81%D0%B0%D0%BC%D0%BF+03e&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817973_skachat__autodesk__maya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818402_udovolstvie__ot__x_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818350_vneshnie__pechatnuye__formuy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054668.bin
39e8798130831c2c21661cda9b35037f226fc9e3cb286cac3520d51e4e2ffe81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54668 8504 bytes
font_01_sfnt_off00055e99.bin
f9a4d880e207d6104f3c0f551cac684a428c937f7f42ddd79d061e196cea3b77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E99 15620 bytes

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