Malicious PDF — malware analysis report

Static analysis result for SHA-256 802261049d9913bc…

MALICIOUS

PDF

366.0 KB Created: 2015-08-28 11:47:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cf7df58bfa5abee2fa5174542a0fdfc0 SHA-1: c984871cf11c26dc0f36aeeb0059c53136eb7bd2 SHA-256: 802261049d9913bc1b3d296551f0263fb641352dcb790eab33a653aaa3ec65f6
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 this PDF 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 0.9975

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%B2%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802409_futazh__vuypiska__iz_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802519_super__su_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802479_skachat__microsoft__excel_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056f89.bin
65de4b659555ae520cbf1cc5609bf333b5bfc0666764031e7ffcd76f4dd02253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56F89 8224 bytes
font_01_sfnt_off000587af.bin
50cef02dd43fec9644e08b9af24d856392bb07863e47a0447ee69877ea8ecfbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x587AF 15924 bytes

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