Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfed3eed2ff70bc…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 20:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2a8baaca8c93937ee3b6d089f34717cc SHA-1: 1427c1cca1be4772050341590a2ac4aba78c1c05 SHA-256: 6dfed3eed2ff70bcd51a74905169f9a86a7968d982b5d6de31fc18015b1b8ccc
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 designed to lure users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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=Chemoffice+2010+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184632_rayan_kevin_van_helsing_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184409_programma_vremya_segodnyashniy_vuypusk_21_00_smotret_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184452_skachat_ze_kryu_cherez_torrent.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_off0002406b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2406B 3556 bytes
font_01_sfnt_off00024dee.bin
a968eea1b8436bdb2bb835079882e612c5bd210147aabc7320d479eed5ec4205		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DEE 14608 bytes
font_02_sfnt_off00027bec.bin
198f16211363e579c3449561d6884a62c694352089105638c237aba65c1dbce0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BEC 15048 bytes
font_03_sfnt_off0002a79e.bin
c3e7f20686ee73356f1afe01e9fdda0d21589ea8ffc5a349ad89c7c8e3107d51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A79E 7248 bytes
font_04_sfnt_off0002bcc8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCC8 6084 bytes
font_05_sfnt_off0002cc5d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC5D 3752 bytes

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