Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb09b001f6c003de…

MALICIOUS

PDF

376.2 KB Created: 2015-08-24 04:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e06f369c84a4b05df4c551d962d0aacb SHA-1: f144d75f815483f9d2d5cab7b8dc1c366834682c SHA-256: eb09b001f6c003de3669f8b45711217d0fadb1f790de1ba11847facff467822d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be luring the user to the malicious URL, which is likely to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%BE%D0%B1%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D0%B7%D0%BB%D0%B0+1+2+3+4+5+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694122_otzuyv__po__praktike_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4699/4699470_trehstoronniy__dogovor__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694470_520k__avtobus__podolsk_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a0a4.bin
0633c398455f31cb6dce74e7d38adc29d0b9abb2caa5adcd4885d421a1e1b8a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0A4 8192 bytes
font_01_sfnt_off0005b881.bin
5ad95f74b93ce91bffce1203e89336200cc683349bdb39d4ce0157be4719238f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B881 12632 bytes

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