Malicious PDF — malware analysis report

Static analysis result for SHA-256 b13f0fef43144729…

MALICIOUS

PDF

364.2 KB Created: 2015-08-28 17:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 4c8931d795e8793b2bc76d3ecafff107 SHA-1: 4b38f53729203ddfccd0577a9930e37fc073e83c SHA-256: b13f0fef431447291aaa2fe5a55509ef16368ea4cddeb64ce96e30a69be2b476
60 Risk Score

Malware Insights

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

The PDF file was flagged as malicious due to a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is the primary indicator of malicious intent. No scripts were extracted, and the document body was truncated and unreadable, preventing further analysis of the specific lure. The attack pattern is inferred from the malicious URL, suggesting a phishing or malware delivery attempt.

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%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D0%BA+%D1%81%D0%BE%D1%87%D0%B8+%D0%B4%D0%B0%D0%B3%D0%BE%D0%BC%D1%8B%D1%81&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809391_skachat__block__story_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809329_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809294_skachat__buhgalterskiy__plan_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056ad5.bin
f269a9fd25a64e57f3ba09ab4fdb4401e72c5b0cf188f9689e9b31c223c06e8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56AD5 8268 bytes
font_01_sfnt_off000582f2.bin
52b4575b7f628c5987c94ae34b7c467731a17de3c3f47dcfff78a3e2c8e9c9c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582F2 15240 bytes

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