Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afb3fdd769e2f32…

MALICIOUS

PDF

186.3 KB Created: 2015-07-23 21:51:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4bdc843bb48968726848ae59ec4f78e8 SHA-1: 324ecaeebbea75e325b71e59893a8112787fd5a8 SHA-256: 0afb3fdd769e2f3241625c79ae8ecd24fe0df108939794acba401304bc0f8428
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, http://botcraftman.ru/..., is confirmed to be part of known malicious infrastructure. While no scripts were extracted, the presence of a malicious link strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B8%D0%B3%D1%80%D1%83+contract+wars+online+3d&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183202_kursovoy_proekt_po_ventilyacii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184421_obrazec_zayavleniya_na_uderzhanie_iz_zarabotnoy_platuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185063_skachat_papku_moi_fayluy_na_android.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a9d8.bin
701070b6b138a3acf94cb59291654d9828976fe7095cb09d6857fb1a4da2e909		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A9D8 7340 bytes
font_00_sfnt_off00024359.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24359 3556 bytes
font_01_sfnt_off000250dc.bin
58103174fefa45d547749fceb1f5f6959330a1b1f24fd18964961da7f5393272		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250DC 14744 bytes
font_02_sfnt_off00027e99.bin
57a1c2676a6bab3b909ea70c620f48ebc5c158a2be5e6d45677bee6cec960869		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E99 14652 bytes
font_04_sfnt_off0002bf6b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF6B 6084 bytes
font_05_sfnt_off0002cf00.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF00 3752 bytes

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