Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb89b8a304ac294d…

MALICIOUS

PDF

350.4 KB Created: 2015-08-25 22:04:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ec417324bc44b5297bebab1453bb9ed5 SHA-1: aedc87bc51e0ba1dac750fc3bf905fc39d8c7bb0 SHA-256: cb89b8a304ac294d182d73d76ad46a2ef8156897dfcb57158d8d7baaec46e809
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The redirector URL is http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B0%D0%BB%D1%8C%D1%82%D0%BE+%D0%BD%D0%B0%D0%B7%D0%B0%D0%B4+%D1%80%D1%8B%D0%B1%D0%B0&charset=utf-8. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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+%D1%81%D0%B0%D0%BB%D1%8C%D1%82%D0%BE+%D0%BD%D0%B0%D0%B7%D0%B0%D0%B4+%D1%80%D1%8B%D0%B1%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4734/4734693_codevisionavr__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4737/4737167_mandavoshka__doska__igra_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4734/4734921_gta__mendeleevsk_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053801.bin
63082fa9a5b0c31083a4e07d9dbc33893c9539083dcf973f4e1bc6adf62bc111		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53801 7232 bytes
font_01_sfnt_off00054cec.bin
0c4f5d6b25e57bcb403a99d934c1ce6eb3a61526ed27bfd3a7c8a4b86fadfcc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CEC 14676 bytes

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