Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ccf9c60250771c5…

MALICIOUS

PDF

350.5 KB Created: 2015-08-23 20:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0ba95ac25ee33b4aedb782eec36977cd SHA-1: 62ec6ccf07b3e57a3ac10d6c801ef23bbf6ad4f5 SHA-256: 7ccf9c60250771c546299ba6ae0d3dc42ffe784c266d14cb11b2245b921b1217
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is confirmed as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and the malicious link strongly suggest an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B+%D1%84%D0%BE%D1%80%D0%BC%D1%8B+%D1%81%D1%83%D0%B4%D0%B5%D0%B1%D0%BD%D1%8B%D1%85+%D0%BF%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%B2%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690046_skachat__originalnuyu__vindovs_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690037_dzhon__perkins__taynaya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690045_nokia__expressconnect__lumia_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052ecf.bin
f2c595eebb3e145471f7ff671426e809352a6c76fbb8f92386bc971843fb219b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52ECF 8860 bytes
font_01_sfnt_off00054868.bin
95c8f921605c70d3a995935713d15cfbe0171b069c6b8d86de7372eae94ddbf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54868 16640 bytes

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