Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d62560cf4b19571…

MALICIOUS

PDF

365.4 KB Created: 2015-08-28 14:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 100e60a1a7262f9760055b1c0382f1b1 SHA-1: 7135a446db590371602f7954e079a63cc8c7f2ae SHA-256: 3d62560cf4b1957152301bc3795780c11358891859766b478470be2039f38f98
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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=%D0%91%D0%B0%D0%B7%D0%B0+%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%BE%D0%B1%D0%B8%D0%BB%D1%8C%D0%BD%D1%8B%D1%85+%D0%BD%D0%BE%D0%BC%D0%B5%D1%80%D0%BE%D0%B2+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4805/4805834_biznes__plan__kfh_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4805/4805967_skachat__drayver__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802385_osmanskaya__imperiya__i_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056a7b.bin
d69d09e8dbd3555be1e6545061b62bb69cb37705bf4c665c8d3ff0142069cdc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A7B 10052 bytes
font_01_sfnt_off00058671.bin
4372f55fe136e7841a6ca263beeb0d6582f9903de1fba49bf1643a143c10a333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58671 15672 bytes

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