Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca0729b77d51dcc…

MALICIOUS

PDF

187.8 KB Created: 2015-07-24 14:52:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f8db5f520d2899c7da36c53cceb4fde9 SHA-1: d305d89a42a2c2d2f11fab9cf364b8ddd42649c6 SHA-256: fca0729b77d51dccd8880a0d421924aa7bbc9507bc62a33537edc50c70b78a7d
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to deliver malware. The link's URL suggests a lure related to downloading Adobe Photoshop. No scripts were extracted from this sample, but the presence of a malicious redirector and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

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=adobe+photoshop+cs6+%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+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190877_miss_yunaya_naturistka.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184633_kitami_masao_samuray_bez_mecha_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184893_kassy_072_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002adbd.bin
2f324d7a60daf982f17082f1366196ca1a9d069094353422c94b7595b98d1cde		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ADBD 7956 bytes
font_00_sfnt_off00024745.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24745 3556 bytes
font_01_sfnt_off000254c8.bin
2eba145ab682f5184df233c0dbad6a6c2da7a0e9b13eb84ab70dbc3fb13c5eca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254C8 14780 bytes
font_02_sfnt_off00028228.bin
f83bcc7037352834a2c771f425a177c3406e3de7b640ed48a4e520036a9b52d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28228 14808 bytes
font_04_sfnt_off0002c556.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C556 6084 bytes
font_05_sfnt_off0002d4eb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4EB 3752 bytes

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