Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbb9d9696f29c1a7…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 13:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 051e1a396f7f618da919071ee62c4c1d SHA-1: da1d5f82cd19a7d09b64982937c1b01a8a87628c SHA-256: fbb9d9696f29c1a7d0d235e292b3aa20fac8b5c4fdbf370fbcce7b1b36ee345c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is a strong indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was truncated, but the presence of the malicious link is sufficient for this assessment.

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=%D0%BA%D0%BE%D0%B4%D1%8B+%D0%BF%D0%BE%D0%B4%D1%80%D0%B0%D0%B7%D0%B4%D0%B5%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2+%D0%BF%D0%B0%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185118_ufo_aftershock_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184893_kassy_072_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188571_adobe_photoshop_lightroom_5_na_russkom_skachat_besplatno_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024550.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24550 3556 bytes
font_01_sfnt_off000252d3.bin
3bc30011b46a7eb60915542b236e4867343a82b190aa8875cc28bad55f254b38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252D3 15280 bytes
font_02_sfnt_off000281b2.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281B2 14468 bytes
font_03_sfnt_off0002ac65.bin
f75d26fe13ecf1dd8b63f44eee6c729ba146d110ed36feab1b37d6d1d32c6b58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC65 6696 bytes
font_04_sfnt_off0002bf86.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF86 6084 bytes
font_05_sfnt_off0002cf1b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF1B 3752 bytes

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