Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb2f6e78032dfc5e…

MALICIOUS

PDF

353.6 KB Created: 2015-08-27 23:43:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cf425e43937e7e9f7da5256d98239de2 SHA-1: d61a63b68ca9570836c791a1a1d30fc653ef7950 SHA-256: bb2f6e78032dfc5e5259d8597affe9c5b00ddab8450d5c1fca6701956f5b464b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%80%D0%B8%D1%87%D0%B0%D1%80%D0%B4+%D0%B4%D0%BB%D0%B8%D0%BD%D0%BD%D1%8B%D0%B5+%D1%80%D1%83%D0%BA%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+txt&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787860_rashod__kkal_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787896_goluye__podrugi_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788017_skachat__kod__aktivacii_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000540d5.bin
d4ad8c8e3ffdec2fafc23616ef66fa460a06d061099405297d8b91d5f49f7cd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x540D5 8236 bytes
font_01_sfnt_off000557fe.bin
0357e772468335ad426c841f55b31aae926c610a197d84a3fb75b5f1b8c46da3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557FE 15044 bytes

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