Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc92724ba5b57ff…

MALICIOUS

PDF

185.2 KB Created: 2015-08-08 11:29:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ac7ad21504e6732652538fd2adcfb17b SHA-1: abca8889e30881eebaad19970be17078379778f4 SHA-256: bcc92724ba5b57ffb290837507b57c5698e860c99d02018c49b17c4f80f44be7
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 ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B1%D0%B8%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D0%B1%D1%80%D0%B8%D1%82%D0%BD%D0%B8+%D1%81%D0%BF%D0%B8%D1%80%D1%81+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387758_dzhon_styuart_v_deyli_shou_o_rossii_i_sirii_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387772_skachat_igru_need_for_speed_rivals_2013_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387598_zhurnalorder_7_v_yeksel_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024076.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24076 3556 bytes
font_01_sfnt_off00024df9.bin
a18ef8f7ffc5afa4ab7a7bbc80f192f5823996f07e44748f11fb799f2afca824		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DF9 14804 bytes
font_02_sfnt_off00027bf1.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BF1 14468 bytes
font_03_sfnt_off0002a6a5.bin
a1aad601744158ee1df586e634508bfa103348f6a2a749c5a617fbe5251fcd57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6A5 7000 bytes
font_04_sfnt_off0002bae9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAE9 6084 bytes
font_05_sfnt_off0002ca7e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA7E 3752 bytes

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