Malicious PDF — malware analysis report

Static analysis result for SHA-256 f07dbaa6cc60e923…

MALICIOUS

PDF

338.8 KB Created: 2015-08-26 21:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b528e7e90cf08d9bf88e6358e301527a SHA-1: 4bb692c45de5c3745d128e5c7f586ed19a299faf SHA-256: f07dbaa6cc60e9235fb1e9def2d9560e84fb8e95f8f51cbb722bff8792b8159e
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 infrastructure at http://botcraftman.ru/. This indicates an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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+%D0%B0%D1%80%D1%85%D0%B8%D0%B2%D0%B0%D1%82%D0%BE%D1%80+%D0%BD%D0%B0+%D1%81%D0%B8%D0%BC%D0%B1%D0%B8%D0%B0%D0%BD&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4765/4765222_slide2unlock__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4765/4765302_proshivka__dlya__sony_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4765/4765453_skachat__fifa__13_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050a20.bin
f043ece122af0e7a4ed479819fe92814cfeadb10eaa06f9250242a7f21ff4e48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50A20 7748 bytes
font_01_sfnt_off00052076.bin
93e0613d10ce35043ae629355091bf9469e9fc986747554d737ec3e21bbb5fe4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52076 14532 bytes

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