Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c0057423bf7062…

MALICIOUS

PDF

365.2 KB Created: 2015-08-26 09:51:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: fa00c4c537869a3fb3f0952fb6443d85 SHA-1: 996c15ff2bc6e8307b9eceb03643e3f3843b185a SHA-256: 54c0057423bf706264ca09d881a60672d648f4d49b5c9c48abad28d7e95d9efd
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure, botcraftman.ru. This indicates the document is likely a lure to download further malware or conduct a phishing attack. The ClamAV detection as 'Pdf.Dropper.Agent-9256465-0' further supports its malicious nature. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-9256465-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9256465-0
  • 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.
  • 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+%D0%B8%D0%B3%D1%80%D1%83+%D1%85%D0%B8%D1%82%D0%BC%D0%B0%D0%BD+3+%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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751791_goluye__devochki__7_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751727_scenariy__den__rozhdeniya_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751592_russkiy__yazuyk__7_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000571e3.bin
b032fc6998b9dae87a1297f59382f47cfd5ef62628cc09312f21aad1c34dabcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x571E3 8880 bytes
font_01_sfnt_off00058b84.bin
fbc06171050361d6e237d058e14e86e817880cb76081cf3c18297a892a022292		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B84 13108 bytes

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