Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8074fc101def1b…

MALICIOUS

PDF

368.3 KB Created: 2015-08-22 08:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8c8d2d2c379aaa3dff6edaff9a383f84 SHA-1: 22b0433e611ed6e6588b90ae4b9dafea24a2a70c SHA-256: 6b8074fc101def1bb3ae5c471619445d98b73736aeab80cb4387afbd84c00144
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing indicating it is a malicious redirector. The embedded URL, http://botcraftman.ru/..., is flagged as malicious infrastructure. While no scripts were explicitly extracted, the nature of the PDF and the malicious URL suggest it is designed to lure users to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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%8E%D1%80%D0%B8%D0%B9+%D0%B0%D0%BD%D1%82%D0%BE%D0%BD%D0%BE%D0%B2+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674527_vadim_panov_dikie_persuy_skachat_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674531_igo_primo_2015_dlya_windows_ce_60_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674492_egye_po_russkomu_yazuyku_2015_4_klass_s_otvetami.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005737e.bin
4db5dd1ecc6eeef79a2e0fdbde6ea6b9733e6a8edb26bcad1c52773b46d00e0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5737E 8284 bytes
font_01_sfnt_off00058ba3.bin
ff7cee37d0d2bab768dcf0702fa303c26edaebc250eae55df1a5ffc22243548c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58BA3 17628 bytes

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