Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6998edcf99516ac…

MALICIOUS

PDF

367.4 KB Created: 2015-08-24 01:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 27b938e131fe2a1904a8ee9f460ddef2 SHA-1: d18418f76a70319476e367bf858ef7604bddb885 SHA-256: e6998edcf99516ac3b49ecfb7705e22904d034eafa625d987e83da37c1291755
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector infrastructure. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%85%D0%BE%D1%81%D0%B8%D0%BB%D0%B0+%D1%80%D0%B0%D1%85%D0%B8%D0%BC%D0%BE%D0%B2%D0%B0+mp3+%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//4695/4695022_fayloobmennik__do__3_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694582_tv__tadzhikistan__onlayn_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695912_sortament__metalla__tablica_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000579ea.bin
596bbc5d5ff31b17f87dd5f4738a7f56cb2df6283ed2d72fa4ae2eb0caf08bf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x579EA 10204 bytes
font_01_sfnt_off000595ca.bin
d85094e5ac4791aad632db8d653f55edaff9f1392b139d564eaa3161620eb255		 pdf-font-stream PDF embedded font (sfnt) at offset 0x595CA 12620 bytes

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