Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03ea3ffe6114027…

MALICIOUS

PDF

185.3 KB Created: 2015-08-08 14:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 08c92a7d603603e83c379982761e3a4f SHA-1: 2dbd970b28809a95513413dd4b82ac1392b4f601 SHA-256: c03ea3ffe611402771c803a64f7f8d32711705aa74cbeac7055293e8834355a2
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user 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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D0%B1%D1%8B%D1%87%D0%BD%D1%8B%D0%B9+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4394/4394636_skachat_skript_buksa.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389189_skachat_igruy_na_nokia_asha_302.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385248_mohito_odezhda_oficialnuyy_sayt_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024326.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24326 3556 bytes
font_01_sfnt_off000250a9.bin
2724e1c6dbb42bef04c502cc470ce3ce8c05bc72da604d0ef1b792d67ff20cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250A9 14420 bytes
font_02_sfnt_off00027dfe.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DFE 14468 bytes
font_03_sfnt_off0002a8b0.bin
04d827beab68caf0b5f816944e3eefa1057343f8b99771379ec97b3d9ecb3bc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8B0 6596 bytes
font_04_sfnt_off0002bb87.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB87 6084 bytes
font_05_sfnt_off0002cb1c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB1C 3752 bytes

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