Malicious PDF — malware analysis report

Static analysis result for SHA-256 15b2a4a54711da65…

MALICIOUS

PDF

187.4 KB Created: 2015-07-26 03:35:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cc2c0cfd7f6958a629043eefa8f72ed4 SHA-1: 36d7cd1318a7139b45113338f4722c32ed67f821 SHA-256: 15b2a4a54711da65776254999552098c8fb26be128d07e1e490d78f6eb06ab28
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL suggests the document is designed to lure the user to a compromised site.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B1%D0%BE%D1%80%D0%BA%D1%83+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D1%81+%D1%88%D0%B5%D0%B9%D0%B4%D0%B5%D1%80%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200384_sorry_but_this_version_of_gta_saexe_is_not_supported_chto_delat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186966_avatar_legenda_o_korre_porno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185554_mac_os_x_109_skachat_torrent_iso.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_off000246d3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246D3 3556 bytes
font_01_sfnt_off00025456.bin
f77ea218ceaa357140741b33aed83fc678d6eb497f5e4a0d1f94f348ea4aeb51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25456 15300 bytes
font_02_sfnt_off0002835e.bin
7c74b494c1ff1b85f0757b786ca8b412a0f4cf193b1879c073a10830a13bfa71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2835E 14700 bytes
font_03_sfnt_off0002aeb0.bin
a5f945085285ca3a3c95eaf91a991de7b44b6b053fb2b2c8cc3e87e406a0c145		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEB0 7164 bytes
font_04_sfnt_off0002c3a2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3A2 6084 bytes
font_05_sfnt_off0002d337.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D337 3752 bytes

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