Malicious PDF — malware analysis report

Static analysis result for SHA-256 67dff6785de63616…

MALICIOUS

PDF

187.4 KB Created: 2015-07-27 19:13:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d1d9cf5c0b0cbe5df41f3dfedb9f76b6 SHA-1: 871722f44a91420769f5108366f74e7db0f3ef10 SHA-256: 67dff6785de636163276609d476e505abcedb061e881a1fc577e3faab3d5db00
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. It contains an embedded URL pointing to 'botcraftman.ru', which is identified as a known malicious redirector. This suggests the document's primary purpose is to lure users to a malicious site, likely for further exploitation or malware delivery.

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-8791109-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8791109-0
  • 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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%BA%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD+2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208649_aim_dlya_varfeys_bez_aktivacii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196543_natasha_koroleva_ukradennuye_foto.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211715_flibusta_knigi_fantastika.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_off0002490f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2490F 3556 bytes
font_01_sfnt_off00025692.bin
2f7d37db641a26b980420c4014ea1b47e6083da25ca522f4d851f6c23858a6f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25692 14604 bytes
font_02_sfnt_off00028460.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28460 14468 bytes
font_03_sfnt_off0002af12.bin
fa511653ee955404454c1acf6cee90560a670ce86aa51a2c0a7233bb1f5b27a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF12 7088 bytes
font_04_sfnt_off0002c3af.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3AF 6084 bytes
font_05_sfnt_off0002d344.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D344 3752 bytes

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