Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6961a18b2e5b92c…

MALICIOUS

PDF

235.2 KB Created: 2021-04-04 19:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6f0057dab965deb4b764c1cac2b7190c SHA-1: 5e1e0d503c8a59a276b250d000d86eaf2072d4ac SHA-256: d6961a18b2e5b92c4a0ea73231d28feeb5a3f3ee22993e67d6e648d2df659d47
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 URL that suggests exploit scripts for Roblox, and a heuristic indicates a download button lure. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, which could be used to disguise malicious links or content.

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/hacking-exploit-scripts-for-roblox 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
stream_002_off000356c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x356C7 22012 bytes
SHA-256: 42ab1ed40386f406ac6f74ed5e69d03d7d1c695b683f08fcc3541b8b633eca70
font_01_sfnt_off00038742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38742 18632 bytes
SHA-256: ed49486b50a9d86dc4a0b088986485116a8a4bbfdbd0a586857d396bd57cce25

Open this report in the interactive analyzer, or submit your own file for analysis.