Malicious PDF — malware analysis report

Static analysis result for SHA-256 012bdc960e0787a4…

MALICIOUS

PDF

185.3 KB Created: 2015-07-24 15:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6b8685fa390ac8206cde7d53c100db62 SHA-1: 521d6809cadd97553a5bb12d0493128007cf3c0a SHA-256: 012bdc960e0787a4f9dc6b4a9a135f3da5e1402d54cf059d287e47b1da6c422e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a link to a known malicious redirector infrastructure, http://botcraftman.ru/. This indicates the file is designed to lure users to a malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact 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%B1%D0%BE%D0%BD%D0%B8+%D0%BD%D0%B5%D0%BC+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img1.liveinternet.ru/images/attach/c/5//4187/4187576_ya_smotryu_na_tebya_iryene_kao_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189394_luchshiy_optimizator_windows_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186164_shablon_tablichki_esli_vam_meshaet_moy_avtomobil_raspechatat.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_off00024040.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24040 3556 bytes
font_01_sfnt_off00024dc3.bin
13ac075446c5b2231acdc82caf3fa8a55bd316378a4899523741f1edfed6bbc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DC3 15148 bytes
font_02_sfnt_off00027d63.bin
a9770cbb19a982a1ca245ae9dd57c2ebe78e8510dfe5e68aa43f25edc86204a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D63 14468 bytes
font_03_sfnt_off0002a815.bin
78859706a0fba95b63d2963f91f07aa3610f16d76c6d5fb9daec521aa9135ac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A815 6732 bytes
font_04_sfnt_off0002bb5c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB5C 6084 bytes
font_05_sfnt_off0002caf1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAF1 3752 bytes

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