Malicious PDF — malware analysis report

Static analysis result for SHA-256 77a002d4e8b15209…

MALICIOUS

PDF

364.5 KB Created: 2015-08-26 10:04:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6b7c6f0e7ee432c3512cca4bfb4d4618 SHA-1: 9296d4cd5421c60ad4a137d8223173e48f463641 SHA-256: 77a002d4e8b1520979d0a1562f1fb83ebccadc085073478d670d33519a77f8cc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/, which is likely used to host a phishing page or distribute further malware. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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=1%D1%81+%D0%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D0%B8%D1%8F+82+%D1%81%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751881_goluye_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751712_skachat__indiyskie__klipuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751711_uchebnik__problemuy__teorii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000568e5.bin
eb2a3b7b95da2d29a02d50b563448b09d67c4e743faf5b0b4dff7845e30f8637		 pdf-font-stream PDF embedded font (sfnt) at offset 0x568E5 10760 bytes
font_01_sfnt_off00058748.bin
3b92ac3c6d5cb16837b78c5ae65d7cd6b8dc673710995d03c62526cc0283e7a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58748 13408 bytes

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