Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ba40a251f127e3…

MALICIOUS

PDF

356.7 KB Created: 2015-08-28 11:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: df65e80bf8216435586ac04b49bc7f02 SHA-1: ba3c80fdc09f0841f279a5e716fb3f0ea95fa96e SHA-256: f9ba40a251f127e36ac587909942baa59607f8e0c7321668588fff49ed724093
92 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is presented as a download for Logitech webcam drivers. This indicates a social engineering lure to trick the user into visiting a potentially harmful site. The ML classifier also flagged this PDF with high confidence.

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=logitech+webcam+c210+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802396_skachat__gangstar__vegas_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802643_skachat__kartu_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802685_spravochnik_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005467e.bin
bc9f2d624dcd3676dfe138f78505d02c6568d1f17a003183c1a438886991c3ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5467E 9852 bytes
font_01_sfnt_off000561ad.bin
df2333e520f3ac43f6f6dcb3e3bac92fb8ca6cc8db4b4bd9c232bc655b4cb2da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x561AD 16392 bytes

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