Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc9cc3230d84d0d…

MALICIOUS

PDF

345.5 KB Created: 2015-08-24 00:26:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 65df27e615fecd916da462b28765dbb0 SHA-1: e6511407f74e3ebabcb687462530c8869af5c5fd SHA-256: 6bc9cc3230d84d0d4f5cc3a2b132489935b99ab6bdd714234de60778dcee49e9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest a phishing or malware delivery attempt.

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=Direct+3d+device+9+%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://img0.liveinternet.ru/images/attach/c/6//4694/4694267_logopedicheskie__kartinki__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693613_skachat__nero__8_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693621_skachat__mod__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000519e3.bin
3ce6986132afcc35b486ae488e7f957184d9373c4e95a829aca4cdd335fe6750		 pdf-font-stream PDF embedded font (sfnt) at offset 0x519E3 8620 bytes
font_01_sfnt_off00053279.bin
332716adecac0b084950fc9d3dcd8d412668b0a47f7eb9c50b0af59ce639140d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53279 16980 bytes

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