Malicious PDF — malware analysis report

Static analysis result for SHA-256 e061e88fdec5d81f…

MALICIOUS

PDF

369.1 KB Created: 2015-08-24 02:11:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: efe0d30767f41d805d0b49ff191a33ea SHA-1: 0fb17b50bdbb8668c618cb37be559d4ed84b3ac1 SHA-256: e061e88fdec5d81f7895a72df41e5ac1f01010a37976284daa6ca6fdc3a00b1a
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating it's designed to lead users to harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious redirector URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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%B8%D0%B7%D1%83%D1%87%D0%B5%D0%BD%D0%B8%D0%B5+%D0%BF%D1%80%D0%B0%D0%B2%D0%B8%D0%BB+%D0%B4%D0%BE%D1%80%D0%BE%D0%B6%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B4%D0%B2%D0%B8%D0%B6%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2+%D0%B8%D0%B3%D1%80%D0%BE%D0%B2%D0%BE%D0%B9+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B5+%D0%B4%D0%BB%D1%8F+%D1%87%D0%B0%D0%B9%D0%BD%D0%B8%D0%BA%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694030_vitalya__dzha__diskografiya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4696/4696706_skachat__midi__fayluy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694701_vzlomannuyy__play__market_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057ba2.bin
c535882475f0509f9cda49df2f77d125c2bc5f320cc616232799fab45841fa00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57BA2 10632 bytes
font_01_sfnt_off00059983.bin
b08c0b3e2b3c17a448a2018e0f940b018d0f0c1a7e09de62f1958ffd4fc4cf34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59983 14152 bytes

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