Malicious PDF — malware analysis report

Static analysis result for SHA-256 072c51145dea0dda…

MALICIOUS

PDF

186.5 KB Created: 2015-07-23 19:24:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5004a6396d5215a4a647d714fdefc67c SHA-1: 9238adaf6176fceb22aac7901f9a350415e5121f SHA-256: 072c51145dea0ddac8dd3abb8f5bce56c086cc9a87497bef9b47aa77619c66a0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is sufficient evidence for this assessment.

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-7493595-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493595-0
  • 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%81%D0%B8%D0%BC%D1%81+4+%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%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183179_lampovuyy_kombik_shema.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183241_shema_dvigatelya_izh_planeta_5.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183253_nacionalnuyy_proekt_dostupnoe_i_komfortnoe_zhile.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_off000246c2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246C2 3556 bytes
font_01_sfnt_off00025445.bin
90ba4239bf17a48c6df0dc8bf2c8e8ea9ca78bcd8199cd295256e343b86a21b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25445 14440 bytes
font_02_sfnt_off00028198.bin
67d53b5d93f9c1a2a208a20cc40158f0d1b9c29be983670d6b7c684d37a817b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28198 14468 bytes
font_03_sfnt_off0002ac48.bin
ea0c05ab30ae7a489359d35e2645e45fe36c263d2f5d5e8b4bfb3326cdd57049		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC48 6856 bytes
font_04_sfnt_off0002c027.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C027 6084 bytes
font_05_sfnt_off0002cfbc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFBC 3752 bytes

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