Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff4168d5ff45ebc…

MALICIOUS

PDF

356.0 KB Created: 2015-08-26 16:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ce444d9fb0e98e47b78aae398ef36eef SHA-1: a2995b194aa35c46de4e66e087ec7b34d0354fb7 SHA-256: 9ff4168d5ff45ebcfd585ec1f06fb99075e6bd14554b08bf7f72bce351c02056
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a gateway to a malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was unreadable, but the presence of the malicious URL is sufficient evidence.

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%BF%D1%80%D0%BE%D0%B8%D0%B3%D1%80%D1%8B%D0%B2%D0%B0%D1%82%D0%B5%D0%BB%D1%8C+%D0%BA%D0%BE%D1%82%D0%BE%D1%80%D1%8B%D0%B9+%D1%87%D0%B8%D1%82%D0%B0%D0%B5%D1%82+%D0%B2%D1%81%D0%B5+%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D1%8B+%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&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4757/4757129_vkontakti_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4756/4756740_igra__vlastelin__kolec_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4754/4754224_dzhaz__na__russkom_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054da7.bin
17cef8cd1d08461d581c68198f736492f2a4af7a1ff60a7f4e88bccd01299716		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DA7 8800 bytes
font_01_sfnt_off0005670e.bin
6a97cc5f7996b874c69693f4406c0546514c7ad5debdef4191a83c209a105d19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5670E 12872 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.