Malicious PDF — malware analysis report

Static analysis result for SHA-256 66478729c16cac2a…

MALICIOUS

PDF

183.8 KB Created: 2015-08-09 08:36:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 985c5b433df1be83be475083543a216f SHA-1: c6560bdfa53c3dfb07a000aa85fd52b015381918 SHA-256: 66478729c16cac2abb3b903f80916a7c2e4ba041c0060b8e151a3acf81c64800
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link strongly suggests an attempt to lure the user to a harmful destination.

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%B1%D0%B5%D0%B7%D0%BF%D0%B0%D0%BB%D0%B5%D0%B2%D0%BD%D1%8B%D0%B9+%D0%B0%D0%B8%D0%BC+%D0%BD%D0%B0+%D1%81%D1%82%D0%B8%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388618_sem_kabinok_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4400/4400441_mikrosoft_ofise_skachat_besplatno_dlya_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391607_govorov_nachalo_pravoslavnoy_arifmetiki_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023cb3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CB3 3556 bytes
font_01_sfnt_off00024a36.bin
e33b57f6163b8a3c3f1d46f7a57c9073caf7c7439d36befe7728f2bef9585182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A36 14816 bytes
font_02_sfnt_off00027891.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27891 14468 bytes
font_03_sfnt_off0002a345.bin
0d9978ecc744c5235137d43cede8850234593d85374f17c62c9facc142009d19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A345 6424 bytes
font_04_sfnt_off0002b563.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B563 6084 bytes
font_05_sfnt_off0002c4f8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4F8 3752 bytes

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