Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d64ef8c6052fb0b…

MALICIOUS

PDF

234.9 KB Created: 2021-04-04 19:15:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cd918c720cc774cdefc7469036a211db SHA-1: a58d5d158d49fb88a2f7c27a8808b369e36be08a SHA-256: 6d64ef8c6052fb0bb04574cc6da282568e89ae58685bd3d017ea08a578555998
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file, identified by ClamAV as Pdf.Phishing.Roblox062100-9873116-0, contains an embedded URI pointing to a suspicious domain related to 'how to be a hacker in roblox'. The presence of a visual download button heuristic further suggests a lure to download content. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, potentially masking the malicious nature of the linked resource.

Machine Learning

  • Nyx PDF Classifier clean score 0.0491

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://gaminggenerator.org/app/431946152/how-to-be-a-hacker-in-roblox-on-ipad
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00035784.bin
40d42ace9e3b038e4630ae2ec62d916f7733d44e9b96915ebf80729e93519e96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35784 21672 bytes
font_01_sfnt_off0003872b.bin
fd93996a76573782b3e96781d9af2d74d789508f2cff394e82dffd2ce4d1f46b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3872B 18232 bytes

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