Malicious PDF — malware analysis report

Static analysis result for SHA-256 e461ad03d53f052e…

MALICIOUS

PDF

235.2 KB Created: 2021-04-04 18:56:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a79a6e64cc2810b78284a07c807a130e SHA-1: bfd0600ccdfe750f2902165e45547640cc49c3ae SHA-256: e461ad03d53f052e21fd4d626afa2a19fa4f6e4f8a1e9063cb50e299fa9ca6a4
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a website promising a "Robux Hack", which is a common lure for phishing or malware distribution. The ClamAV heuristic also flags it as Pdf.Phishing.Roblox. The presence of embedded URLs and the nature of the lure suggest an attempt to trick users into downloading further malicious 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/robux-hack-no-downloading-games 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_off000356f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356F1 21496 bytes
SHA-256: 88ae9695a4f89a9565150bdcb132218628137442edfa3c671c061d6ffbfccb77
font_01_sfnt_off000385f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x385F1 19068 bytes
SHA-256: 8a0f17bec96ffd30e23a2f2cbe22e572ff8dd6932065bdfccace4b31e9803cd4

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