Malicious PDF — malware analysis report

Static analysis result for SHA-256 8448db0cf4db61b0…

MALICIOUS

PDF

358.4 KB Created: 2015-08-26 10:19:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cc2e194d9a97cb58f634647d2a989482 SHA-1: 2688d23b088441761f41d43a2760d197fcd3a6f1 SHA-256: 8448db0cf4db61b07a3534daa000cd056a362524de23feda12ae94e8a3e400d0
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of the malicious URL is sufficient to classify the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B8%D0%B7%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F+%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B0+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B8+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751622_orudiya__smerti__knigi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752046_tancevalnuyy__shanson__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751669_wwf__smackdown__2_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054fc1.bin
f321d968b4bc09af0ace61de3417a22e6d58ddbc1e4e4231c23de8daf7bda5e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54FC1 7984 bytes
font_01_sfnt_off0005670f.bin
13614fbc404c0c4b37702f76311ed6d0612fbc7f9c6937d804d39a846fbf291c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5670F 16500 bytes

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