Malicious PDF — malware analysis report

Static analysis result for SHA-256 c831d7ae3ea60e3b…

MALICIOUS

PDF

186.1 KB Created: 2015-08-05 16:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 41e826fcd62340318e539337f11e44f6 SHA-1: 2d19b83cb464be8656690f9fd655b921b1ea2aa6 SHA-256: c831d7ae3ea60e3bfd1154c2ccd856ee490dae3f38b36b85bae484fffbafe6d5
60 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 heuristic indicates the document is designed to lure users to a potentially harmful site. No scripts were extracted, and the document body was not readable, limiting further analysis of the specific lure. The primary attack vector appears to be a malicious link embedded within the PDF.

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%D1%84%D0%B8%D1%81+2007+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B4%D0%BB%D1%8F+windows+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304502_proschayte_faraonuy_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305434_myerilin_monro_zhizn_rasskazannaya_eyu_samoy_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305329_garmin_nuvi_1300_proshivka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a80b.bin
57bf3a2ffd3d5ca220beb4ac9dce1de89d6657561be2b1ccdc953e981620a3ae		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A80B 7600 bytes
font_00_sfnt_off0002423f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2423F 3556 bytes
font_01_sfnt_off00024fc2.bin
f59423805646c328209bc2b6025b6a026175c74f7339e7fb6dd701c638095fbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FC2 14440 bytes
font_02_sfnt_off00027ce8.bin
e8c3d486bea71f84a61c1fb64e5f4da8ff855e9743de45b006200ce34d2623b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CE8 14584 bytes
font_04_sfnt_off0002be73.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE73 6084 bytes
font_05_sfnt_off0002ce08.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE08 3752 bytes

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