Malicious PDF — malware analysis report

Static analysis result for SHA-256 27a7e958846403f4…

MALICIOUS

PDF

184.1 KB Created: 2015-08-08 09:45:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bad057b5b71db9fc1be84f5174abaed0 SHA-1: 890a3140d333def44861187c7c5d6a5c25a65ccb SHA-256: 27a7e958846403f486d7bfebddd807293ddd14f10ac341e28c5ff6583f862edd
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 embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent. No scripts were extracted from this sample, but the presence of a malicious link strongly suggests a phishing or redirection attack. The document body was truncated and did not provide further context.

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%BF%D0%BE%D1%80%D0%BD%D0%BE+%D1%83%D0%B7%D0%B1%D0%B5%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383953_vin_kod_toyota_rav4.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384019_obrazec_dogovora_podryada_s_yuridicheskim_licom.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383954_devushki_na_rabochiy_stol_programma.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ec5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EC5 3556 bytes
font_01_sfnt_off00024c48.bin
0643285ebcc35457bc6d541243ad21ba55905c6790fa297440c24011d929ee74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C48 14612 bytes
font_02_sfnt_off00027966.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27966 14468 bytes
font_03_sfnt_off0002a418.bin
b17e9b3ee337cb8882072e17b322608cf8862f18003c1aa3de6cabc0d3cb8742		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A418 6468 bytes
font_04_sfnt_off0002b67f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B67F 6084 bytes
font_05_sfnt_off0002c614.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C614 3752 bytes

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