Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5c18408ec7bcd2…

MALICIOUS

PDF

184.3 KB Created: 2015-07-24 07:50:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 06fc906cfc3b4328ae3c584efbdfb893 SHA-1: 9f49e0c7d98fc03a828370a580f036044eecfe7c SHA-256: 4d5c18408ec7bcd2a5113d7912a56095fabc63d294098dd1ee0bc49761e47bd7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a harmful site.

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%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BD%D0%B0+%D0%BD%D0%B5%D0%B4%D0%B5%D0%BB%D1%8E+%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186411_skachat_stalker_novaya_voyna_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185793_metro_2_igra_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186076_otvetuy_delta_gmssb.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f8c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F8C 3556 bytes
font_01_sfnt_off00024d0f.bin
ce8deae83f7476fe564a40b40827ee72ff7b77df10737095f641f2ccc7d7a810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D0F 14504 bytes
font_02_sfnt_off00027add.bin
7b48ffcfc3e9a1e81795b32758e6e78d24a8384cfaf21a1b98dbcc5fa588ef2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ADD 14520 bytes
font_03_sfnt_off0002a5ac.bin
9c35141e1fa62f46beca3dc61033c8a5312b18a704e41716ac3fa4fc84598cad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5AC 6332 bytes
font_04_sfnt_off0002b77b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B77B 6084 bytes
font_05_sfnt_off0002c710.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C710 3752 bytes

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