Malicious PDF — malware analysis report

Static analysis result for SHA-256 8403e6b5920e6aae…

MALICIOUS

PDF

374.4 KB Created: 2015-08-24 04:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f55774d994b36b9500cb47073f494e0a SHA-1: b1455f6772824b2131f763fcb331e2a88a3230b1 SHA-256: 8403e6b5920e6aae7e644ce54f8ce0a3f75b4944755050634449bc57f6ebb99d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests an intent to redirect the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%D1%80%D1%82%D0%B8%D1%84%D0%B8%D0%BA%D0%B0%D1%82%D1%8B+%D0%BD%D0%B0+%D1%81%D1%82%D1%80%D0%BE%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%BC%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%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&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695663_novosil__instrukciya__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4698/4698537_skachat__gugl__hrom_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4698/4698536_skachat__igru__stubbs_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059252.bin
ea670a8b8c0325f3c16f50a9158036714c829aa684973e35e4931d1616903b43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59252 8084 bytes
font_01_sfnt_off0005a9d5.bin
94b07c9fa98b09d784197ad60fea496298e2b2fda80191b119b58537ef42fb30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A9D5 15292 bytes

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