Malicious PDF — malware analysis report

Static analysis result for SHA-256 852605f7080b22ef…

MALICIOUS

PDF

185.1 KB Created: 2015-07-24 19:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 87fcc070ccf11d34a440783a400d51e4 SHA-1: f5ac49719be45eac0919b3cf6b96346967b0bdbb SHA-256: 852605f7080b22eff6013245c8c9257e9f4395d9f11b5b676a908a212f249ce0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. This suggests the document is designed to redirect users to a harmful website, likely for phishing or malware distribution. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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%A1%D0%B8%D0%BD%D1%82%D0%B5%D0%B7%D0%B0%D1%82%D0%BE%D1%80+%D0%BC%D0%BA+939+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193044_stalker_ten_chernobuylya_mod_ogs_evolution_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193105_skachat_igru_pole_chudes_bez_ogranicheniya_vremeni.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193832_powerpoint_skachat_besplatno_dlya_windows_7.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_off00024133.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24133 3556 bytes
font_01_sfnt_off00024eb6.bin
ff6000e15a12f9c43bfb76859d6c3f1bc8b6dc90f1a430f7a3f4cab4591b8fcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EB6 14752 bytes
font_02_sfnt_off00027c9e.bin
5418a165ee25bdcd34dfab7ce6d6386e667820155777b87f2fa1674ffc3fd0a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C9E 14468 bytes
font_03_sfnt_off0002a74b.bin
65df91efe055955cfc36a17e8dc6fedd7d526595ba36eee78e7e90f6a6642502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A74B 6748 bytes
font_04_sfnt_off0002bacb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BACB 6084 bytes
font_05_sfnt_off0002ca60.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA60 3752 bytes

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