Malicious PDF — malware analysis report

Static analysis result for SHA-256 93924db987ccb5cc…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 15:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e1fb7751b5b321a6d929b578037522bd SHA-1: c16cdba9fb227b4d57cb8a7bee013a14b13564b3 SHA-256: 93924db987ccb5cc117f5d87e2e6b49b7a1abef4840e2051deda75921af17e2a
92 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, botcraftman.ru. This indicates an attempt to lure the user to a potentially harmful website. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was not readable.

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=spider+man+2+enter+electro+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+pc&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189967_dosrochnoe_egye_po_matematike_2015_26_aprelya_variantuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186592_sia_1000_forms_of_fear_skachat_albom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185895_pin_kod_na_varfeys_na_5000_kreditov_2015_iyun.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024204.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24204 3556 bytes
font_01_sfnt_off00024f87.bin
18e0058b6c472bff6ac23c733162f0fcfeb012788415c6d246c4b1ea7fc987ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F87 14752 bytes
font_02_sfnt_off00027d71.bin
051379243a4632b9c1656b0060a73ad0f302182583ac7f1d3f652e9d96271c8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D71 14956 bytes
font_03_sfnt_off0002a99f.bin
a0948b586b07582271ccdcad78e8cdebb9b9e8d31273b8f3fbd290c235b8637f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A99F 7416 bytes
font_04_sfnt_off0002bf52.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF52 6084 bytes
font_05_sfnt_off0002cee7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEE7 3752 bytes

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