Malicious PDF — malware analysis report

Static analysis result for SHA-256 754405d3d2eb0100…

MALICIOUS

PDF

188.5 KB Created: 2015-07-25 20:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 99d795db4afc6a2edbf8532ea1d1efa0 SHA-1: cb2a3934a029335c1302dd43b454b645359436f6 SHA-256: 754405d3d2eb0100ea2b92f7e7f3bd740a8e7a1f47e3af6e789b6647d7d10728
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%A5%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B0+%D0%BD%D0%B0+%D0%B2%D0%BE%D0%B4%D0%B8%D1%82%D0%B5%D0%BB%D1%8F+%D0%B4%D0%BB%D1%8F+%D0%BD%D0%B0%D0%B3%D1%80%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B3%D1%80%D0%B0%D0%BC%D0%BE%D1%82%D0%BE%D0%B9+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187995_adob_audishn_15_skachat_besplatno_russkaya_versiya_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204481_skachat_igru_ks_go.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4201/4201026_filmuy_tinto_brassa_smotret_onlayn_besplatno_klyuch.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024da7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DA7 3556 bytes
font_01_sfnt_off00025b2a.bin
14a55e8a5a2b2d7d9dcb03b95bfe64b9c2bcfcb3064e417c6faff471227d8962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25B2A 14408 bytes
font_02_sfnt_off000288b0.bin
3af1df323d326f3cd90723690561a0bf01029c62f450d4ad10918822bbd9cd4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x288B0 14536 bytes
font_03_sfnt_off0002b36f.bin
b0003c43290a70faf461622c3bd8008f9c1532b025defcc9fb2a15d066d3d184		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B36F 7200 bytes
font_04_sfnt_off0002c858.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C858 6084 bytes
font_05_sfnt_off0002d7ed.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7ED 3752 bytes

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