Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee28de7d9245e822…

MALICIOUS

PDF

187.4 KB Created: 2015-08-05 13:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 89137176c79c255e2f58a5f4e0959d0f SHA-1: 450f766ab858975bc3f399358e212350b36ff8d3 SHA-256: ee28de7d9245e8223a9e4dee9ceabbb5ed840cb9915029e13b35817447eccbe8
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/?lip&keyword=%D0%B0%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80+%D0%BC%D0%B0%D0%BA%D0%B5%D0%B4%D0%BE%D0%BD%D1%81%D0%BA%D0%B8%D0%B9+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D0%B7%D0%B0%D0%B2%D0%BE%D0%B5%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BC%D0%B8%D1%80%D0%B0+%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' is the primary indicator of malicious intent. No scripts were extracted from this sample, so the attack pattern is inferred solely from the malicious link.

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%B0%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80+%D0%BC%D0%B0%D0%BA%D0%B5%D0%B4%D0%BE%D0%BD%D1%81%D0%BA%D0%B8%D0%B9+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D0%B7%D0%B0%D0%B2%D0%BE%D0%B5%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BC%D0%B8%D1%80%D0%B0+%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://img0.liveinternet.ru/images/attach/c/6//4304/4304426_malavita_goblin_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304436_obrazec_zayavleniya_na_ezhegodnuyy_otpusk.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a0e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A0E 3556 bytes
font_01_sfnt_off00025791.bin
f74c98cbb22f8e43da50b519a91e87e55efa0b8b6bd753bbc35fde99819904c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25791 14432 bytes
font_02_sfnt_off00028520.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28520 14468 bytes
font_03_sfnt_off0002afd2.bin
fab58d0e080e32043de1a5263d96a376636da7b8ce5e456335748c5ad79302c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFD2 6912 bytes
font_04_sfnt_off0002c3c8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3C8 6084 bytes
font_05_sfnt_off0002d35d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D35D 3752 bytes

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