Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8322583d768af78…

MALICIOUS

PDF

234.3 KB Created: 2021-04-04 19:47:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 0481daaaa0cf0ac2ab42056c97d18201 SHA-1: 535bc70fa83d615e5ff593176c0698fb8c5b7085 SHA-256: e8322583d768af78ff1785b96c596152a3d7c5e093783c9dbb1805a8b41b96eb
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a specific phishing signature related to Roblox. It contains a suspicious URL pointing to a 'Roblox Hack' generator, and a heuristic indicates a visual download button lure. Although no scripts were extracted, the presence of a malicious URL and the phishing signature strongly suggest an attempt to trick users into downloading potentially harmful software.

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/roblox-hack-gnrateur-robux-gratuit 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_off000356f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356F2 21348 bytes
SHA-256: a775113ec42cd17e5b3b59f8c05ccccacb9a4208eb6a22e76461b0a4218083de
font_01_sfnt_off00038540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38540 18080 bytes
SHA-256: 974a14c559c2324e00572c7bcefd8a611ebc0ea90ef2d8bd2d2d5ab4e7b16a92

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