Malicious PDF — malware analysis report

Static analysis result for SHA-256 cda9760f4c05b92e…

MALICIOUS

PDF

185.8 KB Created: 2015-07-25 02:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c4e13aeb4b00b7698c04087eb3678ced SHA-1: 22d9bb6dd7fb243e24fd873babcbe31b508861f2 SHA-256: cda9760f4c05b92ebc859c93e333aa012f1e7a85d38ac1c15ede1dd7ab6416a8
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link. The ML classifier also assigned a high probability of maliciousness. The embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector, indicating the document's primary purpose is to lure users to a dangerous site. No scripts were extracted, but the presence of the malicious URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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-8789571-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8789571-0
  • 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%BA%D0%BE%D0%B4+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B4%D0%BB%D1%8F+red+alert+3&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185994_skachat_windows_7_ultimate_64_bit_torrent_chistaya_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191595_skachat_maynkraft_172_s_modami_bez_virusov.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197020_skachat_winamp_dlya_windows_7_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241cc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241CC 3556 bytes
font_01_sfnt_off00024f4f.bin
6ef04b754b1aaa7752af6921f7be6c635fbd11fc95afb961c95a0995875e5994		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F4F 15072 bytes
font_02_sfnt_off00027e01.bin
9ce0ad6ce10b0a20ba60937617876af1cc3f7608d8922fa79cf7b222e11e9717		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E01 14576 bytes
font_03_sfnt_off0002a90b.bin
dd1a7dfbf0482c32e26a6e3905aac2e4e33cf4ba2175323de86af69027003a68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A90B 6992 bytes
font_04_sfnt_off0002bd4e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD4E 6084 bytes
font_05_sfnt_off0002cce3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCE3 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.