Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7a3e9f0f4143121…

MALICIOUS

PDF

372.3 KB Created: 2015-08-22 09:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bcd72ad7bebe3e06c5fa2626cd8c3bd9 SHA-1: 8623a2c6ae0d11feb19e9ab8228516174397e166 SHA-256: b7a3e9f0f41431214cacd54d30d7614dd5601c9664b02fc33a29b78b71e2c098
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL points to 'botcraftman.ru', which is associated with malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%93%D0%B0%D0%B7%D0%B5%D1%82%D0%B0+7+%D0%B4%D0%BD%D0%B5%D0%B9+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674744_obrezat_video_programma_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674627_skachat_pokemonuy_5_sezon_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674668_skachat_drayver_crystal_soundfusion_tm_cs4281_wdm_audio.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000584ad.bin
7c523e049545dfb02a47396fceb294cc8b7e6cf915b69ef3581b480838a581f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x584AD 8672 bytes
font_01_sfnt_off00059de4.bin
63b96f7b3816bb448505e297c4a375bcd7cd12f15f10d88f4a2ade681bc7ad62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DE4 16976 bytes

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