Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce14f19ca0c67c43…

MALICIOUS

PDF

187.3 KB Created: 2015-08-08 10:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b7d50ce18e2508ceb837f573216937de SHA-1: 34e6e6d1fffb1192ae052a3be6cdeec07b72bd39 SHA-256: ce14f19ca0c67c433156b8536af0ecbb1d7b3620a7cda81c646369a46444dc7b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful external resource.

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%B0%D1%81%D1%81%D0%B0%D0%B8+%D0%B7%D0%B0%D0%B4%D0%B5%D1%82%D1%8C+%D0%B7%D0%B0+%D0%BC%D0%B5%D1%80%D1%82%D0%B2%D0%BE%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384264_portfolio_fizinstruktora_v_detskom_sadu.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383972_skachat_igru_five_nights_at_freddys_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383707_ustanovka_windows_7_na_kompyuter_s_windows_xp.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024881.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24881 3556 bytes
font_01_sfnt_off00025604.bin
242e2d27b5f5c7f56ff2d2f3349cde5ce276cab1ac13b08869b00dbf76782fd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25604 15256 bytes
font_02_sfnt_off00028504.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28504 14468 bytes
font_03_sfnt_off0002afb6.bin
b7603a2afe3c9d0411f4375ff4410373c18c489e0e7ba840fc50d970328ee1d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFB6 6860 bytes
font_04_sfnt_off0002c389.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C389 6084 bytes
font_05_sfnt_off0002d31e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D31E 3752 bytes

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