Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f77251b69c5f785…

MALICIOUS

PDF

184.6 KB Created: 2015-07-23 20:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7a3a528a7da1d9b8002a125c63e6c858 SHA-1: fd242e2ee3d8f4cc9aa9ad111806f02d5c26e529 SHA-256: 9f77251b69c5f7854c26c01e0c387db6e7be7c23fdd2e96b73501bb7442bf6bd
120 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, http://botcraftman.ru/. This heuristic firing, combined with the ClamAV detection of Pdf.Dropper.Agent-8788644-0, strongly indicates that this PDF is designed to deliver a malicious payload. The embedded URL is the primary indicator of compromise.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8788644-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8788644-0
  • 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%9D%D0%B0%D1%80%D0%B5%D0%B7%D0%BA%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BA%D0%BE%D0%BD%D0%BA%D1%83%D1%80%D1%81%D0%B0+%D1%88%D0%BB%D1%8F%D0%BF%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184437_sims_4_skachat_na_android_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184445_volhovnik_kniga_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184612_skachat_minecraft_1_5_2_exe.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002401a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2401A 3556 bytes
font_01_sfnt_off00024d9d.bin
1da81d6a057f21882d67be542184da67c6f8486c74e24b89e6652f31762625a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D9D 14732 bytes
font_02_sfnt_off00027b3e.bin
a0637eda0aec6819b961ba30aa3975a9acb3d40b2f85ccacee0f3354be30d398		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B3E 14520 bytes
font_03_sfnt_off0002a60f.bin
23c8b64f59a7e64c3c948079a6f7822f35fbd256fe0f501724a2963bee567870		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A60F 6484 bytes
font_04_sfnt_off0002b877.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B877 6084 bytes
font_05_sfnt_off0002c80c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C80C 3752 bytes

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