Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fcfd6c64e141d00…

MALICIOUS

PDF

188.0 KB Created: 2015-07-23 20:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d57e1d42d7ca8b6766b5718748732f17 SHA-1: e61737a49de7d7aed77e64dc0f80c02fb0e6be86 SHA-256: 1fcfd6c64e141d00f6f9914fa31d301245a9502be6c2feb8591d85dae045e616
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link pointing to botcraftman.ru. The ML classifier also assigned a high probability of maliciousness. This indicates the document's primary purpose is to redirect users to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8786010-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786010-0
  • 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%BF%D1%80%D0%B8%D0%B1%D1%8B%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82-%D0%BC%D0%B0%D0%B3%D0%B0%D0%B7%D0%B8%D0%BD+%D0%BF%D0%BE%D0%B4+%D0%BA%D0%BB%D1%8E%D1%87+%D0%BA%D1%83%D1%80%D1%82%D0%B5%D0%B5%D0%B2+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184445_volhovnik_kniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183257_urok_proekt_po_russkomu_yazuyku.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184262_windows_8_dlya_noutbuka_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b67.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B67 3556 bytes
font_01_sfnt_off000258ea.bin
972ea6fb1afc8c259df755bedee13d86eb8a3c4a0d2a64bb2991721f93c7e36d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258EA 14304 bytes
font_02_sfnt_off000285f5.bin
afb4024640af32799aee3cd7c285fef6465a606009e6847dd3df8f6bf202c874		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285F5 14468 bytes
font_03_sfnt_off0002b0a6.bin
1381235ae5471a21d81c9febf044bacc3bd30db072d4b83489250ece97613337		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0A6 7344 bytes
font_04_sfnt_off0002c614.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C614 6084 bytes
font_05_sfnt_off0002d5a9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5A9 3752 bytes

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