Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ecf3d49a281b46…

MALICIOUS

PDF

188.2 KB Created: 2015-08-08 09:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fa9031b03aa1430bd79c2010ee10f5f8 SHA-1: 0a289f1e1e980a17e89c44da9a6aea1ed43d04aa SHA-256: d0ecf3d49a281b461cb5d9cc8e434e6a9d83803d8cf6e30882ed4c32c1e7c6ae
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 strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%9F%D1%80%D0%BE%D0%BF%D0%B8%D1%81%D0%B8+%D0%B4%D0%BB%D1%8F+1+%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%B0+%D1%80%D0%B0%D1%81%D0%BF%D0%B5%D1%87%D0%B0%D1%82%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/6//4383/4383794_skachat_muzuyku_besplatno_luchshie_hituy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383698_redsn0w_0915b4_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383727_indeycuy_afriki_otkrovennuye_scenuy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024dca.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DCA 3556 bytes
font_01_sfnt_off00025b4d.bin
1d697e1e2f653681862c82cfd1cafddafadf32bd9b358aec3a2b932278ff1a73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25B4D 14524 bytes
font_02_sfnt_off0002890b.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2890B 14468 bytes
font_03_sfnt_off0002b3bd.bin
e797291f83a4beb089a957dd0073b76ee7ec17aa21eb85402a7251d0a701960e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3BD 6696 bytes
font_04_sfnt_off0002c6f1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6F1 6084 bytes
font_05_sfnt_off0002d686.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D686 3752 bytes

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