Malicious PDF — malware analysis report

Static analysis result for SHA-256 962f24fe0fd8be5b…

MALICIOUS

PDF

348.6 KB Created: 2015-08-28 11:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f0dd4c64dccf324d3ce1aea006cde489 SHA-1: 8d036124eb4cb8b383c22f5667c87fccf7d6d927 SHA-256: 962f24fe0fd8be5b212cd6a80acb21e51bf9be019aa1ae84c0b360ac66108bac
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains an embedded link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be directing users to malicious infrastructure via the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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%BA%D0%BB%D1%8E%D1%87%D0%B8+%D0%B4%D0%BB%D1%8F+%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%BE%D0%B2+%D0%BB%D0%B0%D0%B1%D0%BE%D1%80%D0%B0%D1%82%D0%BE%D1%80%D0%B8%D0%B8+%D0%BA%D0%B0%D1%81%D0%BF%D0%B5%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802426_programma__dlya__nablyudeniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802382_russkaya__vyaz_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802499_raspisanie__avtobusov__kustanay_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052eca.bin
3a512e34232eed35521119d1b0710becfbab37b5119100b208763c8122bfd302		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52ECA 8836 bytes
font_01_sfnt_off00054854.bin
840dc9bcbc306edb0232fec9961efd275d6cea97bf70f5e3b0a1d8e1bcc4a139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54854 13348 bytes

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