Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0c61610b7b88290…

MALICIOUS

PDF

184.4 KB Created: 2015-07-27 19:03:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fde81b52d8249b7af93eced2218bfe84 SHA-1: 91346fa3c950f602e3eaa7e1f5939251cb2ea15e SHA-256: b0c61610b7b882903543c0c83b819e9255677e289bad6baa64293897de40ae5a
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. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was not parsable.

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=%D1%81%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%BE%D0%B2+%D0%B5%D0%B2%D0%BF%D0%B0%D1%82%D0%BE%D1%80%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202357_skachat_audioknigu_moya_borba.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204284_licenzionnuyy_klyuch_dlya_kerish_doctor_2014.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226030_vkontakte_mobilnaya_versiya_dlya_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024004.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24004 3556 bytes
font_01_sfnt_off00024d87.bin
d3d1154c3dcb487830946ad8cbfe0a3b43ebcc32b3fcb63316e3a7230f39ae61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D87 14444 bytes
font_02_sfnt_off00027af5.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AF5 14468 bytes
font_03_sfnt_off0002a5a7.bin
067746b24119db260301c29a6bf2b50ae5d942a9d5c3cff6376eeb338a9df8a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A7 6440 bytes
font_04_sfnt_off0002b7fc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7FC 6084 bytes
font_05_sfnt_off0002c791.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C791 3752 bytes

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