Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f7030e288a83dc…

MALICIOUS

PDF

44.7 KB Created: 2021-05-13 07:01:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f2d4126694e4f539a548fb36f4c57425 SHA-1: 556ac432e214292ce82e8a6960f3592dc23ce7a3 SHA-256: e2f7030e288a83dc968d445ff320f74df177f5ffec063b15931df59f9f0b6465
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and generators, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or malware distribution attempt, likely using a JavaScript exploit within the PDF to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 https://netcdn.xyz/app/479516143/minecraft-bedrock-client-game-hack PDF link annotation
    • http://www.pro-futuro.eu/images/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/master-game_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/rbxdemon_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pro-futuro.eu/images/free-spins-coin-master-site-wwwquoracom_GM406889139.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
stream_003_off00004b14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B14 28956 bytes
SHA-256: c5f3d894455529672b0b429e41091719f8a9d5da10e74985168442492c228694
font_01_sfnt_off00008c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C51 18344 bytes
SHA-256: c9cb66d1f867d8d8b778a8f6a6e4b7827efe3961d145c36f38d04236c8971b27

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