Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d48f53deb192437…

MALICIOUS

PDF

363.6 KB Created: 2015-08-28 11:35:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1614d9c1e43260160f75f989465dcde2 SHA-1: 77da349300c711851154c5b5860ac8373e87a6e8 SHA-256: 1d48f53deb192437721eaf603877088ec301cbbf4466b92da32727e4c3f87cf1
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The redirector URL is likely used to funnel users to a malicious website for phishing or malware delivery. No scripts were extracted from this sample, limiting further analysis of its behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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%B1%D0%BB%D0%B0%D0%BD%D0%BA+%D0%B7%D0%B0%D1%8F%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BD%D0%B0+%D1%83%D1%81%D0%BD+2015+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802387_skachat__filmuy__v_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802388_programma__dlya__redaktirovaniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802448_winzip__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000569a0.bin
aa7d01ed6d8743fdba3147adc65d21bacc42b90ddb169610dcc71d844d04ad54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x569A0 8128 bytes
font_01_sfnt_off00058156.bin
066e98639711fdd63b535360803d99c25447b726d07618f436e54570fe4d6146		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58156 14396 bytes

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