Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b03dfd6330756bc…

MALICIOUS

PDF

360.1 KB Created: 2015-08-22 00:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a85efd2d3c7d5fd63abbbecea2931cf8 SHA-1: 66d81f2f86f19297480fd7fdd16d917bded02a09 SHA-256: 5b03dfd6330756bcc1b0b877661cce73988c8e446a22a817a97ba0c7aee5b6bf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%A1%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D0%BA%D0%B0%D0%BD%D0%B0%D0%BB+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%BD%D0%BE%D1%87%D1%8C+%D0%BF%D1%80%D1%8F%D0%BC%D0%BE%D0%B9+%D1%8D%D1%84%D0%B8%D1%80+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4666/4666735_slipknot_diskografiya_skachat_torrent_19922015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654950_instrukciya_primeneniya_dlya_tabletok_sezam.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4663/4663274_ilya_muromec_i_solovey_razboynik_kratkoe_soderzhanie_buylinuy.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005576e.bin
96974b6190a825d4730742a3ad3ddbeb48c4558b0418968d2b22eb05e7244f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5576E 8592 bytes
font_01_sfnt_off00057011.bin
a662d29a16745036673bbe99dfac465983cc9c73dd642cac76729c6d8b32d311		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57011 15292 bytes

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