Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fdaf6d0661ae759…

MALICIOUS

PDF

186.1 KB Created: 2015-07-23 20:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b8d434b91e2d5caa8ac6be9f2e391db9 SHA-1: 376308695fcb9f439f0b2eb1b0ab8c9c6e6acd0c SHA-256: 7fdaf6d0661ae75929d0b38172f3bfe773517a755d37a39e087d1e3c708eb7b6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is http://botcraftman.ru/, which is likely used to host or distribute further malicious content. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D1%80%D1%83%D0%B6%D0%B5%D0%B9%D0%BD%D1%8B%D0%B9+%D0%BF%D0%B0%D0%BA+%D0%BD%D0%B0+%D1%81%D1%82%D0%B0%D0%BB%D0%BA%D0%B5%D1%80+%D0%B7%D0%BE%D0%B2+%D0%BF%D1%80%D0%B8%D0%BF%D1%8F%D1%82%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184290_razrabotka_urokov_v_nachalnuyh_klassah_v_uzbekistane.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184285_igruy_na_russkih_mashinah_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183242_vertikalnuyy_finansovuyy_analiz_primer.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_off00024332.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24332 3556 bytes
font_01_sfnt_off000250b5.bin
2c6d4739cfbfe8623adb43938972e10c7bcf0ff98a44b1eab0b7c6357d4450f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250B5 14908 bytes
font_02_sfnt_off00027f57.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F57 14468 bytes
font_03_sfnt_off0002aa06.bin
a5c0e87cf5b12909a628f68c6ba7fc394addea2944f20930944b08a369285f08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA06 7164 bytes
font_04_sfnt_off0002becc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BECC 6084 bytes
font_05_sfnt_off0002ce61.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE61 3752 bytes

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