Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec24f7e15f824418…

MALICIOUS

PDF

188.7 KB Created: 2015-07-23 20:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2763441214f2a11c8bc437cfdbb20dae SHA-1: 6e40f11aa6e45a31c659f4011ff6bbb4c9b1ca3d SHA-256: ec24f7e15f8244185ab162044f9fb2391e3cd6b00ea32037fe707f715e21b783
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is likely part of a phishing or malware distribution campaign. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B8%D1%82%D0%BE%D0%B3%D0%BE%D0%B2%D0%B0%D1%8F+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0+%D0%BF%D0%BE+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D0%B8+7+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184547_wolfenstein_the_new_order_rusifikator_teksta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184398_risunki_dlya_lichnogo_dnevnika_karandashom_dlya_devochek.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183178_kuryatnik_proekt.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024fd5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD5 3556 bytes
font_01_sfnt_off00025d58.bin
cfdfe9aa104a10d35234624f3adf8c31b80d81fd4a8e4d2fca06fb787035268b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25D58 14616 bytes
font_02_sfnt_off00028b3d.bin
8ab7b971398fb41ed6c37adc33262c77d538f736c8682b97816c91a90b458641		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28B3D 14512 bytes
font_03_sfnt_off0002b620.bin
0e0906299288107c94b0dfd996d95d95d3ad7f5961ae0911dffd62eb1ce9107c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B620 6592 bytes
font_04_sfnt_off0002c8e3.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8E3 6084 bytes
font_05_sfnt_off0002d878.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D878 3752 bytes

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