Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a0f7a46abe7035f…

MALICIOUS

PDF

355.0 KB Created: 2015-08-28 17:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ecd174f7a59daea33500304844200bba SHA-1: 58ef346dd8a334fae2c923a399de70c5bd658c8c SHA-256: 9a0f7a46abe7035fc4916f0fa261c3293af783ae25642978a337d326d9d1c20f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL is likely used to direct users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=1%D1%81+%D0%BF%D1%80%D0%B5%D0%B4%D0%BF%D1%80%D0%B8%D1%8F%D1%82%D0%B8%D0%B5+77+%D1%82%D0%BE%D1%80%D0%B3%D0%BE%D0%B2%D0%BB%D1%8F+%D0%B8+%D1%81%D0%BA%D0%BB%D0%B0%D0%B4+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809380_silovaya__shema__yelektrovoza_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809425_platezhnoe__poruchenie__v_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809281_skachat__binarnuyy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054735.bin
6ee279d5916924611e0dcc04c55e74c96a7b5e814944ac12962d29a84b4508fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54735 8472 bytes
font_01_sfnt_off00055fd7.bin
187e153e6aa4ffa1bbce99ab2c4b3fcf279c2f19c7eebf5b8e769e8d21a2093b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55FD7 13988 bytes

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