Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dfe5b85eb55bc17…

MALICIOUS

PDF

183.2 KB Created: 2015-08-08 09:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5ec05ae6bcb2895c4829c63d84f66928 SHA-1: 7c5d8d48ba8160803ffeaa45b0a79e878592e44d SHA-256: 5dfe5b85eb55bc17b3b994a6f088ab9d0f48f3bddef2c60df97ee50b577421b1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. This suggests the document is designed to lure users to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%A4%D0%BE%D1%80%D0%BC%D0%B0+088+%D1%83+06+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • 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_off00023b48.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B48 3556 bytes
font_01_sfnt_off000248cb.bin
c6a1da7754f2b189d0233054e4abffdbb7d342ef7d31697d14f298d0bb58be86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248CB 14300 bytes
font_02_sfnt_off000275bc.bin
8a9b114ce48bb83f49b90c8c6a5223bd9233facfa629cf13c40e235bc7588922		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275BC 14468 bytes
font_03_sfnt_off0002a06f.bin
9acb699a35b538d6b523c169279a91fc90523b758bfc20f480f8821d39095f0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A06F 6616 bytes
font_04_sfnt_off0002b36c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B36C 6084 bytes
font_05_sfnt_off0002c301.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C301 3752 bytes

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