Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8d77d9ef3f0dd43…

MALICIOUS

PDF

183.9 KB Created: 2015-08-08 09:52:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2aa552d1f8293eff5a2f42e8a46e4dbd SHA-1: 4ef8cafd6f2a4a11431cdc1f2087994b6c9efa05 SHA-256: c8d77d9ef3f0dd4363fb408c755470efcd9ac018131fd95d59abce2a6809b592
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/?lip&keyword=%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%BE+%D0%B4%D0%B6%D0%B0%D0%B7%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8, is the primary indicator of malicious intent. This suggests the document is designed to lure users to a potentially harmful website.

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%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%BE+%D0%B4%D0%B6%D0%B0%D0%B7%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4227/4227516_skachat_igruy_tri_v_ryad_besplatno_polnuye_versii_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384485_obrazec_zhalobuy_na_ohrannika.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384543_vcherashniy_boy_na_kanale_rossiya_2_v_2100.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e55.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E55 3556 bytes
font_01_sfnt_off00024bd8.bin
c1c2d63b156870bb05e04f87fb8fa9bbc2e3c5b17f828eecec398b03f2be67d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BD8 14112 bytes
font_02_sfnt_off00027838.bin
fbe4af72ea4b6832e02f3a94d39805fe74296d1f62d5d4f3c350b4dd983b7d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27838 14468 bytes
font_03_sfnt_off0002a2e6.bin
40b4f4ba13fe7d4efd1f9d640b2080a3352ea14911fc845052176a333cfc9979		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2E6 6600 bytes
font_04_sfnt_off0002b5a8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B5A8 6084 bytes
font_05_sfnt_off0002c53d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C53D 3752 bytes

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