Malicious PDF — malware analysis report

Static analysis result for SHA-256 c633eb7f1de5aba2…

MALICIOUS

PDF

235.3 KB Created: 2021-04-04 19:09:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 1530ed40a9fd59623f2aa60c4d3d3b22 SHA-1: 207a38eb5bb67601fd85f49ee17ca185904f607b SHA-256: c633eb7f1de5aba259d65c35ceaacad8c8b6880d337bfb7e7cb63827d6239486
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Phishing.Roblox062100-9873116-0. It contains an embedded URI pointing to a website offering a 'hack script for Roblox', suggesting a phishing or social engineering lure. The presence of a download button heuristic further supports this, indicating an attempt to trick the user into downloading a payload.

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/hack-script-for-roblox-prison-life PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000356de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356DE 21972 bytes
SHA-256: d84fc8bf5ae74379445196738f00278d8a70c389b6445b46c04d220b800690f4
font_01_sfnt_off00038703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38703 18788 bytes
SHA-256: f8cfb2e80517e66463fe09823cebecac3e1d819b8a60769ac0c78e20903f36ce

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