Malicious PDF — malware analysis report

Static analysis result for SHA-256 193d03635c111cbb…

MALICIOUS

PDF

353.1 KB Created: 2015-08-19 12:24:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 312682e4c8cda7e27332df3bcedac4e1 SHA-1: 51bdbdceb44f97e0ef5d60797f4857c9d3a2db92 SHA-256: 193d03635c111cbbaf1f44c4c990ec83b765fd4e316e26d5585bdf24a73d1b15
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/, which is likely used to host or redirect to further malicious content. No scripts were extracted, but the presence of a malicious link strongly suggests a phishing or redirection attempt.

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%95%D0%B3%D1%8D+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+2015+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D1%82%D0%B5%D1%81%D1%82%D1%8B+%D1%80%D0%B5%D1%88%D0%B0%D1%82%D1%8C+%D1%81+%D0%BE%D1%86%D0%B5%D0%BD%D0%BA%D0%BE%D0%B9&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626527_chitat_onlayn_hroniki_razdolbaya_2_spor_na_balu_volanda.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626490_skachat_serial_1001_noch_vse_serii_na_russkom_yazuyke_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626499_rezultatuy_gia_po_matematike_2015_9_klass_po_pasportnuym_dannuym.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053b50.bin
eb5b98e04c811baf0730a497861d945b2f7661b022cd51f6a53f470197fb2432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53B50 10032 bytes
font_01_sfnt_off00055826.bin
8b22ad293491c2af79d968560b834379efbc0859235da572a4871c0222f3b855		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55826 13864 bytes

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