Malicious PDF — malware analysis report

Static analysis result for SHA-256 82924264e203e6f4…

MALICIOUS

PDF

368.4 KB Created: 2015-08-28 11:38:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 80663ce530962af17201f4678c7f98ed SHA-1: 464c4e9c9b140be0d97a73c72c1009a6a6c4b70e SHA-256: 82924264e203e6f418bf7af770ff18ad46145976c4ae361730b81554271b8c8e
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. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly suggest a phishing or malware delivery attempt. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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%BC%D0%B8%D0%BB%D0%BE%D1%80%D0%B0%D0%B4+%D0%BF%D0%B0%D0%B2%D0%B8%D1%87+%D0%B4%D0%B0%D0%BC%D0%B0%D1%81%D0%BA%D0%B8%D0%BD+%D0%BA%D1%80%D0%B0%D1%82%D0%BA%D0%BE%D0%B5+%D1%81%D0%BE%D0%B4%D0%B5%D1%80%D0%B6%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802431_sanpin__315282610__profilaktika_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802526_jre170_25cmsi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802500_skachat__redaktor__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057e80.bin
c6a8ede7b1d11bccf9e0554311a1a46908a12cf77f74ac24ecf26ebc14573f13
pdf-font-stream PDF embedded font (sfnt) at offset 0x57E80 7844 bytes
font_01_sfnt_off00059506.bin
8af84165e9949986acc86684c86be226400fa7fa7fd42c8bc21edb2e2e000efa
pdf-font-stream PDF embedded font (sfnt) at offset 0x59506 14248 bytes