Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80d81c3865b84fc…

MALICIOUS

PDF

341.9 KB Created: 2015-08-27 23:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cad095cb2c96b85366b3d4d88f0cfcc1 SHA-1: 3e5692afa08af0397b1ef554be3cc0bb7b7a89c9 SHA-256: e80d81c3865b84fc57f4af25a65ff2e7d59b8b6cc5d161895e5d463765397193
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content or intent beyond the malicious redirect.

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=%D0%B4%D1%80%D0%B0%D0%B2%D0%B8%D0%BD+%D1%87%D1%83%D0%B6%D0%B0%D0%BA+11+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fb2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787807_gazel__bu__kupit_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788126_kapa__skachat__vse_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788001_listok__netrudosposobnosti__zapolnyaem_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051212.bin
125793b5794c82e6f1292c91fb364b22fecda44bccb94c7b9b5c5ef95304eaa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51212 8692 bytes
font_01_sfnt_off00052b79.bin
122ebcac90cb25372e9e4b49e5de8d58d3dff6610d0bf066726d058d68e20745		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B79 13988 bytes

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