Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e16942c4b71e6ea…

MALICIOUS

PDF

350.5 KB Created: 2015-08-21 09:21:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: cd351e3b586d6f7827b5017854dad47f SHA-1: 6252a1344990fea62999f6f5722e111df3a28d9b SHA-256: 9e16942c4b71e6eafae05dfe53e5ef8bde3f25248b52b749a34e88cba9e60cb4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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%81%D0%B2%D0%B5%D0%B6%D0%B8%D0%B5+%D0%BA%D0%BB%D1%8E%D1%87%D0%B8+%D0%BD%D0%BE%D0%B4+32+%D0%BD%D0%B0+90+%D0%B4%D0%BD%D0%B5%D0%B9&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654753_skachat_igru_left_4_dead_3_cherez_torrent_licenziya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654786_skachat_programmu_dlya_vzloma_v_kontakte_login_i_parolyu.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654772_rsplayer_v14_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052f9d.bin
c39ce11e8ca49970aa6d67c48720a75c52bf63c71b58a3677cd5a2aab152b56d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52F9D 10472 bytes
font_01_sfnt_off00054ced.bin
483d5d505d49732c127996be5c4bdfd10e4dbf27c6b5aaec63afbb644de56f66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CED 14980 bytes

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