Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ff2430552138d85…

MALICIOUS

PDF

357.4 KB Created: 2015-08-28 11:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 380cb2f155f445342cf0018ca4eb0e31 SHA-1: 053943978f336c99534ac83633344d48afa2b3b0 SHA-256: 8ff2430552138d857c619a949b4145175c7d073520200e80b4c9da891c573d0b
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful website. No scripts were extracted from this sample.

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%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%B8%D0%B3%D0%BE%D1%80%D1%8F+%D1%80%D0%B0%D1%81%D1%82%D0%B5%D1%80%D1%8F%D0%B5%D0%B2%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&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802447_raspisanie__avtobusov__moskva_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802542_skachat__na__telefon_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802507_80__dney__vokrug_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055191.bin
db4a88a41b40ea8cca53b902123b659b1fed181ca5ba8b3e454a1e3ddccf142e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55191 7764 bytes
font_01_sfnt_off00056803.bin
4f7face4b60793ea975d94d63c9c70d554acc489e0e09a4ba4fd767a5a4e1315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56803 14552 bytes

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