Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c2acaf4b04ae96…

MALICIOUS

PDF

356.7 KB Created: 2015-08-29 01:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 083e76312b055fa42c4708df1236eda9 SHA-1: cc83f76814d58273405eb5e1a412ba3dd6279c6a SHA-256: 17c2acaf4b04ae96b44816d74a58aa9e6a47e70e6d2fe4402cdd1824ce9f06a3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, but the presence of the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BA+%D0%9A%D0%94%D0%A0+%D0%BF%D0%BE+%D0%B0%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B5+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%9E%D0%BA%D1%82%D1%8F%D0%B1%D1%80%D1%8C+2013&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817852_spravka__svobodnoy__formuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818103_snayperuy__lyubov__pod_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818052_russkaya__ruybalka__installsoft_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000544c5.bin
fddad1b54e226a659cbb8bfc851c93454dde77441183531cc57da8698bebbd16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x544C5 10016 bytes
font_01_sfnt_off00056199.bin
654932d97d090f053566a746df18bb95772bb56c29f96dee15db6d1f0d89f8e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56199 15772 bytes

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