Malicious PDF — malware analysis report

Static analysis result for SHA-256 c35f648bb198e7fe…

MALICIOUS

PDF

186.8 KB Created: 2015-07-25 06:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 328a263c044026d9e5525aa266318193 SHA-1: 9b822ec056dc18b3211068c72c439e5ff6bff059 SHA-256: c35f648bb198e7fe4a4b29e87c54cdf1c9844e9be57403b7857042e7faf998cd
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link 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 potentially 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=%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80+%D0%B4%D0%BB%D1%8F+%D0%BF%D1%80%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%B0+hp+laserjet+m1132+mfp+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195068_skachat_sims_3_16_v_1_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193105_skachat_igru_pole_chudes_bez_ogranicheniya_vremeni.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199451_facerig_skachat_torrent_russkaya_versiya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a8c6.bin
9aff60dc106414b7cc57bda6ede5b043da38d6b8e12e35d7c87fa4af4226cdee		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A8C6 8224 bytes
font_00_sfnt_off000242f2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242F2 3556 bytes
font_01_sfnt_off00025075.bin
77d748328a7a3fbb2090680f976dcb4b3e831b33df527147d419b2c3270c9b70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25075 14076 bytes
font_02_sfnt_off00027c71.bin
2b905986a872aa10b1e3a3ec0f38cb9ecf5d95210bec260f0109d07f4e8918d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C71 15036 bytes
font_04_sfnt_off0002c146.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C146 6084 bytes
font_05_sfnt_off0002d0db.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0DB 3752 bytes

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