Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65ba6be8b832c09…

MALICIOUS

PDF

345.5 KB Created: 2015-08-28 11:28:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e2d88106f59f88bb9261a7f6b188ad5b SHA-1: 9e7f28fa778bdb29175a40038e99903067f72242 SHA-256: d65ba6be8b832c093644bdf955c60de4e88a709bd6010c4530f96da4caebaabe
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure at http://botcraftman.ru/. This indicates the document is likely intended to lure the user to a malicious site for phishing or malware delivery. No scripts were extracted, and the document body was unreadable, so the attack pattern is inferred solely from the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BE%D1%82%D1%80%D0%B0%D0%B2%D0%B0+%D0%BA%D1%80%D1%8B%D1%81%D0%B8%D0%BD%D0%B0%D1%8F+%D1%81%D0%BC%D0%B5%D1%80%D1%82%D1%8C+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4798/4798955_programmuy__dlya__sozdaniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4798/4798517_kak__uvidet__skruytuyh_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4792/4792051_klittle__codec__pack_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051d07.bin
6790665b94798e44718ff517c070c723cd826c2f09c39bfa72b75a99525b2173		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51D07 8556 bytes
font_01_sfnt_off000535c9.bin
1a248023eec681791361d6a7ff2504eebdb14a08353cd71a447cebd6e867516d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x535C9 16176 bytes

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