Malicious PDF — malware analysis report

Static analysis result for SHA-256 75e7770e41f3e7ba…

MALICIOUS

PDF

186.5 KB Created: 2015-07-24 00:10:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7a97ee1685fb8071639602775349153a SHA-1: f2422f439acd1a8ed086362d7ff47748dbbf5445 SHA-256: 75e7770e41f3e7ba9a0e96977fcf2e72d90c03d37d162aff393884d399f229bc
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. A critical heuristic identified an embedded link pointing to a known malicious redirector, http://botcraftman.ru/. This suggests the document's primary purpose is to redirect users to a potentially harmful website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494188-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494188-0
  • 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%B4%D0%B5%D0%BD%D0%B8%D1%81+%D0%BC%D0%B0%D0%B9%D0%B4%D0%B0%D0%BD%D0%BE%D0%B2+%D0%B2%D1%81%D0%B5+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184994_primeruy_gotovuyh_biznes_planov.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184373_forma_m29_na_spisanie_materialov_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185054_hide_tools_dlya_windows_7_x64.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245ce.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245CE 3556 bytes
font_01_sfnt_off00025351.bin
cc9964e9b66b955f9c0523e8a6925cb4fefa19bf228f9eca4f400ad7a08d23ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25351 14704 bytes
font_02_sfnt_off00028141.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28141 14468 bytes
font_03_sfnt_off0002abf3.bin
41215a9aa4b74ebed976983df1fb098e7cbc30449047d3cc4094958fa7a0984a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABF3 7020 bytes
font_04_sfnt_off0002c034.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C034 6084 bytes
font_05_sfnt_off0002cfc9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFC9 3752 bytes

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