Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dabc343e7b7a63a…

MALICIOUS

PDF

186.0 KB Created: 2015-07-25 06:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3627beeb7744d14d121baddd77d75fe8 SHA-1: ca1d1f2800d19a038d8d7a07a53da0906767d826 SHA-256: 3dabc343e7b7a63aff7766eba2794ca47af7b2047859acc9a75fae58f4ef4b8b
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirection attempt.

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%B8%D0%B3%D1%80%D1%83+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+1+8+1+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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/5//4198/4198843_skachat_windows_7_maksimalnaya_x64_rus_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184700_rechnoy_vokzal_novosibirsk_raspisanie_teplohodov_2014.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197620_buhgalterskiy_balans_ego_stroenie_i_soderzhanie.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244a8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244A8 3556 bytes
font_01_sfnt_off0002522b.bin
ca83962a71bfc44ee40fbe96cdc16cd5df2d80c3a8f72df9274ae23922a76819		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2522B 14440 bytes
font_02_sfnt_off00027f50.bin
d5d8a66c54d88b1fd3e9751d1946ec7768e13949c664bd33b207189c6d131484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F50 14468 bytes
font_03_sfnt_off0002aa03.bin
28e3cea0ad0671ace51e9bd9a48d0ad39b0be579731060d572b68331163374bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA03 6940 bytes
font_04_sfnt_off0002be30.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE30 6084 bytes
font_05_sfnt_off0002cdc5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDC5 3752 bytes

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