Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb298de7eb9d7d2…

MALICIOUS

PDF

32.7 KB Created: 2021-07-20 23:11:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c4db5e5a9214079cfae4cad2e11ec80f SHA-1: 0c4966a060b3ebc5ea19af1c3a1ddb2c5a62e172 SHA-256: 6fb298de7eb9d7d20ea8fc7fe9a9cf9cd1dcbe74e6cf238ce70cb9168a79ff51
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, such as 'CLICK HERE TO ACCESS ROBUX GENERATOR', designed to trick users into visiting malicious websites. The primary lure is related to 'free Robux' and game hacks, indicating a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution or redirection to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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://netcdn.tw/app/431946152/free-robux-codes-2021-not-used-game-hack PDF link annotation
    • http://pourvosvacances.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pourvosvacances.com/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-disney-plus-accounts-tiktok_GM835599320.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • http://pourvosvacances.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pourvosvacances.com/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://pourvosvacances.com/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • 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_off00002a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3C 22348 bytes
SHA-256: c65a5e2b788355851af11ca6e6d96fcfd134a6cbb20e1c77de78f88e439dee82
font_01_sfnt_off00005bea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEA 18880 bytes
SHA-256: 342a41804753b243bf13fa7c19db71c7debbb8fa80f4750c82899b0ccf7aa343

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