Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2046b161a74d59f…

MALICIOUS

PDF

183.5 KB Created: 2015-07-25 00:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ed96a26271dfe56504cc56c9a9699e5f SHA-1: e6e9306923020fc425a0fdc6f54cd099b0ca62c4 SHA-256: a2046b161a74d59fc01dcc37ffd5e854cc1b26ccd54239c513702eb3f9c60060
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier strongly supports the malicious nature of this PDF. 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=fifa+2015+psp+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192236_petz_5_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196146_notuy_dlya_fortepiano_iz_seriala_violetta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194507_play_market_nokia_rm980.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a124.bin
2d283a82c90a5d725bd90d653e034e34709bc20a362a33954faea735eb267dc5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A124 6628 bytes
font_00_sfnt_off000239bb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x239BB 3556 bytes
font_01_sfnt_off0002473e.bin
b514dab3f242d42aeffc6a45d97bf6f7d353df75fa68728493768a0b151d91ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2473E 15120 bytes
font_02_sfnt_off00027568.bin
10a68f1aaaf65be619f96023b9a5340644c7047391dc27ef8bfac6fafe6a2c08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27568 14788 bytes
font_04_sfnt_off0002b421.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B421 6084 bytes
font_05_sfnt_off0002c3b6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3B6 3752 bytes

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