Malicious PDF — malware analysis report

Static analysis result for SHA-256 c916450fd2659b5a…

MALICIOUS

PDF

360.1 KB Created: 2015-08-26 18:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a0163cea7f7845bba77a03526b28a27a SHA-1: 32fe92a285027a244f9fd2de33d0c4432394e97f SHA-256: c916450fd2659b5a43a5c168076b67eedd17ad8bc695637410d1d97fa65a3602
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure users to a harmful site. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery.

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=%D1%85%D0%B2%D0%B0%D0%BB%D0%B5%D0%B1%D0%BD%D0%BE%D0%B5+%D0%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%BE+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762165_govoryaschiy__tom__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762150_chit__koduy__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762199_novaya__programma__pereseleniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055bc3.bin
b48b6b1b7602d15a9a22dc8f399e32fc3aaff1af0cb8fe888e2c7a8cfd4d3bd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BC3 9008 bytes
font_01_sfnt_off000574e7.bin
8e3e74d3b83099e993cf5814fd8f8278427eb4265364acf2873c5d2d67937804		 pdf-font-stream PDF embedded font (sfnt) at offset 0x574E7 14072 bytes

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