Malicious PDF — malware analysis report

Static analysis result for SHA-256 e210d212d9360bc9…

MALICIOUS

PDF

187.2 KB Created: 2015-07-25 19:46:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b15ed86fba24c4d65e46a5725891cb11 SHA-1: 70f6b68369672d78e68b144aa695387252ad1706 SHA-256: e210d212d9360bc9f7ab49ee309e0a9a1bb1cd38140902931af4a3632e951caf
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 points to botcraftman.ru, which is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was not readable.

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%D0%B5%D1%80%D0%B5%D0%B4%D0%B5%D0%BB%D0%B0%D0%BD%D0%BD%D1%8B%D0%B5+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D0%BD%D0%B0+%D1%8E%D0%B1%D0%B8%D0%BB%D0%B5%D0%B9+50+%D0%BB%D0%B5%D1%82+%D0%B6%D0%B5%D0%BD%D1%89%D0%B8%D0%BD%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189669_otvetnuyy_udar_4_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184908_upstream_intermediate_b2_students_book_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202431_knd_1152017_za_2013_skachat_so_shtrih_kodom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024746.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24746 3556 bytes
font_01_sfnt_off000254c9.bin
39cdd5cd9f6481462acd434236903245736edba579ddd3fbe3667584cd44dd38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254C9 14932 bytes
font_02_sfnt_off000283e6.bin
f2b1c13d57d8c39d4922ebd7c241f599fcd7f47a1ce498591f73f47e96d29e3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283E6 14640 bytes
font_03_sfnt_off0002af16.bin
1200c68c6d228bfc7bd6615494b351d492ce8f9962271c67e581564f6c6ab63b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF16 6924 bytes
font_04_sfnt_off0002c2fb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2FB 6084 bytes
font_05_sfnt_off0002d290.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D290 3752 bytes

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