Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6f0a932d43b685…

MALICIOUS

PDF

351.6 KB Created: 2015-08-28 00:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0fd9a381d691c7264571b10956631cdb SHA-1: 48a8b48f035e24f7f71589f76d7b910c3e7d9b92 SHA-256: 6f6f0a932d43b685c141b197ced9088d274e1d384572d659441a2c7830aa18d7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is identified as a malicious redirector. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a compromised or malicious site, likely as part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%9A%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%88%D0%B0%D1%80%D0%B0%D1%80%D0%B0%D0%BC+%D0%BA%D0%B0%D1%80%D1%82%D1%83+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788122_dalnoboyschiki__2__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788371_programmuy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787927_kak__razblokirovat__sim_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d60.bin
25b15008c990892a80caaa933ee9cf13e4a0f240403826bffa1928a84b6bb3b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D60 7388 bytes
font_01_sfnt_off000552db.bin
b58b17a12088f684158c471007101fd66be8797b84133298e5548096fb88cba2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x552DB 14476 bytes

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