Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ccef66373732161…

MALICIOUS

PDF

185.4 KB Created: 2015-07-23 21:05:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ddea784112ddb3d5694592c7b752e738 SHA-1: 77fe8ee33787c3b6ee1d5668e3c635a16a5df006 SHA-256: 1ccef66373732161b8919bb74172f9321debd72f73871f8080f63de7a613ee77
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 alert for a malicious redirector link. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as malicious redirector infrastructure. This suggests the document's primary purpose is to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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-8734172-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8734172-0
  • 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=%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%BF%D1%80%D0%B8%D0%B5%D0%BC%D0%BD%D0%B8%D0%BA%D0%B0+%D0%BF%D1%80%D1%8F%D0%BC%D0%BE%D0%B3%D0%BE+%D1%83%D1%81%D0%B8%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184602_scorpions_luchshie_pesni_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184508_diablo_iii_reaper_of_souls_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183197_kursovoy_proekt_po_gazosnabzheniyu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024395.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24395 3556 bytes
font_01_sfnt_off00025118.bin
447954f115ce09eb3e02eb547ca6bb68184324c7f7d4400ea75d7a6f68fbadfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25118 14676 bytes
font_02_sfnt_off00027e6c.bin
0627de34e839737c03af0d9f30945bab194dadec018a1d0b90d3566f99dbb150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E6C 14532 bytes
font_03_sfnt_off0002a95b.bin
90ff450f514f6e9b3c51c50a7517793a5a715198aa39dcd0a57f919f4b6f3e80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A95B 6520 bytes
font_04_sfnt_off0002bbf8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF8 6084 bytes
font_05_sfnt_off0002cb8d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8D 3752 bytes

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