Malicious PDF — malware analysis report

Static analysis result for SHA-256 0137d2ee5c0350b3…

MALICIOUS

PDF

187.4 KB Created: 2015-07-24 00:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c8147d87af427f775d711d2e2135193c SHA-1: cc9cb48c07cbd91fd1b73e52fa7aa8d9e7929d0e SHA-256: 0137d2ee5c0350b364e6b99008d6bc22e02df198d09b6d9bcbc6fcf8d971678b
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is flagged by critical heuristics. This indicates the PDF's primary purpose is to lure users to a malicious site. The ClamAV detection as 'Pdf.Dropper.Agent-8785372-0' further supports its role as a dropper for other malicious content.

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-8785372-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785372-0
  • 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%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+1%D1%81+%D1%82%D0%BE%D1%80%D0%B3%D0%BE%D0%B2%D0%BB%D1%8F+%D0%B8+%D1%81%D0%BA%D0%BB%D0%B0%D0%B4+77+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185282_hidesoft_net_vkracker_6_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186377_aleksey_bryancev_skachat_torrent_vse_albomuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185614_chit_na_dengi_varfeys.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_off000247b4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247B4 3556 bytes
font_01_sfnt_off00025537.bin
400bac8c57e190834afb6666f6f50b192eb1fc104f88272d04603bbe0d5db5df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25537 15024 bytes
font_02_sfnt_off000283c3.bin
61d14ba452ff6e0dc179888c2f398a787bbab14a9cc52f92372d80655ecc5ef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283C3 14512 bytes
font_03_sfnt_off0002aea6.bin
648c010f15aae459fd57d02cda5fb855bcc88c5464d43939e913f4fa5c4ab8de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEA6 7152 bytes
font_04_sfnt_off0002c39a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C39A 6084 bytes
font_05_sfnt_off0002d32f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D32F 3752 bytes

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