Malicious PDF — malware analysis report

Static analysis result for SHA-256 00859b3ef87b44ae…

MALICIOUS

PDF

185.0 KB Created: 2015-07-24 11:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0434ea140d8fd2507a13c40334a0e953 SHA-1: 219fa2f7c0a8fc765d8a90d202140270a60e2f54 SHA-256: 00859b3ef87b44ae1395601098f46a5be0216c3ff5078c40be31e073e68e4c85
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a malicious redirector link. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is known to host malicious redirector infrastructure, indicating the document's purpose is to lure users to a harmful 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%8E%D0%B1%D0%B8%D0%BB%D0%B5%D0%B9+75+%D0%BB%D0%B5%D1%82+%D0%B6%D0%B5%D0%BD%D1%89%D0%B8%D0%BD%D0%B5+%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184597_dzhonatan_herring_iskusstvo_polemiki_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185347_rabochaya_programma_po_literature_6_klass_merkin_fgos.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191622_voprosuy_i_otvetuy_dlya_viktorinuy_dlya_vzrosluyh.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_off0002406f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2406F 3556 bytes
font_01_sfnt_off00024df2.bin
d1aeb8f7f9d1ff7ed096ce54817808f11b79535583a9ac977924d84aa2b47f9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DF2 14336 bytes
font_02_sfnt_off00027afe.bin
dedbcbe2d43c673a17cb85d4975561498a7c723a4624a35d1c037125abf6fdd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AFE 14880 bytes
font_03_sfnt_off0002a6f8.bin
694bdfddc88ca980ad4545e647db6001111f35f92165bb72d68349024903276c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6F8 6676 bytes
font_04_sfnt_off0002ba08.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA08 6084 bytes
font_05_sfnt_off0002c99d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C99D 3752 bytes

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