Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e1b91392223651…

MALICIOUS

PDF

387.5 KB Created: 2015-08-28 00:14:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3a0499a1129045714d7f6348143e09dd SHA-1: b53ec01823c78b9b2bb721da410a072c2817e8ef SHA-256: d3e1b9139222365173f2f10fe8e495d99cab1c109bfe0c4f521b9506fcea61a0
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector at http://botcraftman.ru/. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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%B3%D0%B0%D0%BB%D0%B0%D0%BA%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9+%D1%84%D1%83%D1%82%D0%B1%D0%BE%D0%BB+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787767_vga_____.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787773_skachat__freedom__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788262_game__cih__2_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c589.bin
64deba0b2b7fe30bf86bf6efd3dd27c7c91a730a8508fbdbf603915f03297e8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C589 8120 bytes
font_01_sfnt_off0005dd1a.bin
70d2097469550edf1a856b88a5429e5c21ca064141bcc6ebc3ae0ed3946c6c5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD1A 16188 bytes

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