Malicious PDF — malware analysis report

Static analysis result for SHA-256 78d07e1050de7ef8…

MALICIOUS

PDF

372.2 KB Created: 2015-08-28 11:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5d054af7f38e7d4e9c0c5581a1b0389f SHA-1: 138d2077146e04ce8a4621e2517960c995c1f40d SHA-256: 78d07e1050de7ef8fd264e3e11895004b8de1c0d1b0861f7d47ad04caa02c29c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the nature of the embedded link suggests a phishing or malware delivery attempt, aligning with Spearphishing Attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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%B0%D0%BD%D0%B8%D0%BC%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D1%82%D0%B5%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802453_camtasia__studio__8_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802422_pokropivnuyy__yekonomika__predpriyatiya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802498_teksturuy__dlya__minecraft_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005891c.bin
bf79738664377e494780e8393120b7f7a3dc3d01b35c4d5529599b4a2be33e38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5891C 7904 bytes
font_01_sfnt_off0005a01c.bin
82a3cc263fb214ebe7e17367d38222e7ad8276b0681b47f8145eaed0d5ab730b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A01C 16192 bytes

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