Malicious PDF — malware analysis report

Static analysis result for SHA-256 41a94702e2c54809…

MALICIOUS

PDF

361.9 KB Created: 2015-08-23 20:55:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b8e8ece16bd0c74fd3d7e0816bcc4ab8 SHA-1: 84091a55f932cfb726fe64cc7f0b2abdbfdf3d3c SHA-256: 41a94702e2c5480975b4e1c55fb74ccb3a56dacc7c020560816b04a88b29d8ec
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 infrastructure. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent. While no scripts were extracted, the presence of this malicious link strongly suggests the document is designed to lure the user to a harmful site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D0%BA%D1%81+16+%D0%B8%D0%B7%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B3%D0%BE%D0%BB%D0%BE%D1%81%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690060_obrazec__prikaza__ob_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690063_dogovor__kupliprodazhi__avtomobilya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690067_shablonuy__formuy__sudebnuyh_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000565a6.bin
8de4bf84c56f100acd4b7489697ff342ea7d1b026c62cdc7276df72361396741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x565A6 8232 bytes
font_01_sfnt_off00057de4.bin
8004c3fa199569a20e17776d06a0910c6f2cd8d7ba59b65389355b15da05f188		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57DE4 13044 bytes

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