Malicious PDF — malware analysis report

Static analysis result for SHA-256 44eb502a0c7a055e…

MALICIOUS

PDF

358.8 KB Created: 2015-08-21 09:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d2353b8ce35a7f07a1b5111a38af3d47 SHA-1: 9bc5695c4c96e689bf0b0ab29a541182792dc7ac SHA-256: 44eb502a0c7a055e036e29614018a3ffc8ead291fa5cae631446f7995128c7ad
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link to a known malicious redirector infrastructure, 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 from this sample, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=24+%D0%B4%D0%B5%D0%BC%D0%BE%D0%BD%D0%B0+%D0%B1%D0%B8%D0%BB%D0%BB%D0%B8+%D0%BC%D0%B8%D0%BB%D0%BB%D0%B8%D0%B3%D0%B0%D0%BD%D0%B0+%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://img0.liveinternet.ru/images/attach/c/6//4654/4654680_perevod_teksta_s_angliyskogo_na_russkiy_6_klass_spotlight.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654689_skachat_igru_metro_2034_cherez_torrent_besplatno_na_russkom.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000554a1.bin
404834069fd1a21d71aa06450117817e5d90d517881c333700d62a3c3490cd8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x554A1 8084 bytes
font_01_sfnt_off00056bc1.bin
ad948680f234768930e098494225ddf899b10a634353fbbd951005a1ca7e127d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56BC1 15364 bytes

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