Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ebdfa186cc9981…

MALICIOUS

PDF

340.0 KB Created: 2015-08-24 07:07:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 69ff3a876a22961cb3d2d415cf5d8e65 SHA-1: 5e278e97de400015d64cbf16e597cc64aad8e58c SHA-256: 64ebdfa186cc998185d103129947e79adec55484fd05f2b2640ca2b5e029ebd4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary malicious IOC is the URL, which likely leads to a phishing page or malware download. No scripts were extracted, but the presence of a malicious URL in a PDF document strongly suggests a phishing or malware delivery attempt.

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%BF%D0%BE%D0%BA%D0%B5%D0%BC%D0%BE%D0%BD+%D0%B8%D0%B3%D1%80%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4696/4696568_tekst__pesni__lyubimuyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695267_simulyator__pozharnika__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4698/4698863_spravka__blank__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050f1c.bin
2c4291ceb0e5e795c0816d13a173c101d85d086c97089edb41bb5a63967f935f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50F1C 8172 bytes
font_01_sfnt_off00052725.bin
e994704180754d6cc3acecb239f44ed87da41611baad22f867bf53a8e777f879		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52725 12900 bytes

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