Malicious PDF — malware analysis report

Static analysis result for SHA-256 e61fb0b9747f759e…

MALICIOUS

PDF

183.8 KB Created: 2015-08-08 13:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a806d19fb38b5a85e77cc7d88eb8d89a SHA-1: 65bdaaee2d3285b36304e9d03f42431829d873ea SHA-256: e61fb0b9747f759ed13971e5a729dba9660d7b108356855faffbc6f093e0a4d0
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 redirector URL is http://botcraftman.ru/?lip&keyword=%D0%B1%D0%BE%D1%82+%D0%B4%D0%BB%D1%8F+%D0%B1%D0%B5%D0%B7%D1%83%D0%BC%D0%B8%D1%8F+%D0%B2+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8. This suggests the document is designed to lure users to a malicious site, likely for further malware delivery or phishing.

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%BE%D1%82+%D0%B4%D0%BB%D1%8F+%D0%B1%D0%B5%D0%B7%D1%83%D0%BC%D0%B8%D1%8F+%D0%B2+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388744_skachat_masha_i_medved_novuye_serii_34_35_36_37_38_39_40_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388121_specifikaciya_k_dogovoru_kupliprodazhi_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4392/4392107_toyota_yaponiya_oficialnuyy_sayt_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d7d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D7D 3556 bytes
font_01_sfnt_off00024b00.bin
1e39f21e1d2b79be2689d032add7b7ad9e9939ca131ab3978d1ee95583dcbb90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B00 14104 bytes
font_02_sfnt_off00027751.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27751 14468 bytes
font_03_sfnt_off0002a205.bin
c828f0ae210752ce0066a02a3bc347913d2fe0f316cfd715067ba81fe6512d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A205 6740 bytes
font_04_sfnt_off0002b55f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B55F 6084 bytes
font_05_sfnt_off0002c4f4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4F4 3752 bytes

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