Malicious PDF — malware analysis report

Static analysis result for SHA-256 c299e09ed47f38a2…

MALICIOUS

PDF

378.1 KB Created: 2015-08-28 11:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1b28e2b92bd4cf251587094e42a7bd69 SHA-1: ab6c96ea5ace25ce5256ae96c07704d29bcd8d00 SHA-256: c299e09ed47f38a2cbdea6c4a3c01f70e497affb2d23746f38ef5697f8efbebc
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document's primary purpose is to lure the user to this external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

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%B8%D0%BD%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D0%BF%D0%BE+%D0%BD%D0%B8%D0%BA%D0%B0%D0%BC+%D0%B1%D0%B5%D0%B7+%D1%81%D0%BA%D0%B0%D1%87%D0%B8%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802393_kak__sdelat__vuykidnoy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802418_ovir__holodnogorskaya__sumuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802630_mapsource__russkaya__versiya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a325.bin
b3174100e15746cce7538c061b0a023c1ebd409236548a375dc8d272ca3b3aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A325 9172 bytes
font_01_sfnt_off0005bde4.bin
3cad1b60aa219cd8e763aedd78dc5e9435b1438895e6acebe3e27bdfeab3a016		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDE4 14156 bytes

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