Malicious PDF — malware analysis report

Static analysis result for SHA-256 859ca3dc7e99d76c…

MALICIOUS

PDF

367.5 KB Created: 2015-08-24 00:21:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f8210ff30e5e476b3f39b77f79ba0c10 SHA-1: bbb5f25ceff21abb4388f6df61e1efa9cf5b2e87 SHA-256: 859ca3dc7e99d76cc238cd1629587a9e5eddd30a2c78b03917cc1a986f801714
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a redirect to known malicious infrastructure at http://botcraftman.ru/. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of compromise, suggesting the document's purpose is to lure the user to this site, likely for phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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=%D1%81%D0%B5%D0%BA%D1%82%D0%BE%D1%80+%D0%B3%D0%B0%D0%B7%D0%B0+%D0%B2%D1%81%D0%B5+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC%D1%8B+%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+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694315_vidoiskatel__ili__tuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693101_reshenie__o__vuyplate_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693160_skachat__chit__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005788b.bin
718b892b9a0b066702c7e16ae4269998c80fb85f744c573a0e3387fc6d52796f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5788B 9392 bytes
font_01_sfnt_off0005928c.bin
56aa67995aea1014239457f536bb7d295b4bbb0efd27b4b5170d966f16f01817
pdf-font-stream PDF embedded font (sfnt) at offset 0x5928C 13684 bytes