Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b65f6a3c0f21e53…

MALICIOUS

PDF

36.7 KB Created: 2021-07-03 14:10:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b3f8dbf2874187c56236999a51b93d1a SHA-1: 2b8ee2eaa86d711afa8480740431ea81cfa89e8c SHA-256: 8b65f6a3c0f21e5333a3d8677601f0d40811742759a113e5f2a658c1d3dd8cd2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA and a download button lure, aiming to trick the user into clicking a malicious link. The embedded URL and numerous other URLs point to sites offering game hacks and cheats, suggesting a malware distribution or scam campaign. No scripts were extracted, but the document's structure and content strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/479516143/minecraft-pocket-edition-download-free-pe-calculator-game-hack
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-to-make-robux-free-and-fast_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/hack-coin-master-game-download_GM406889139.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/generator-robux_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/minecraft-client-download_GM479516143.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/robloxedit-avaater-cheatcom_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-to-get-free-minecraft-windows-10_GM479516143.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-many-levels-in-coin-master_GM406889139.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-roblox-giver-roblox_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/is-minecraft-education-edition-free_GM479516143.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/hack-coin-master-for-free_GM406889139.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/roblox-play-free-no-sign-in_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-hack-xyz-download-free_GM406889139.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free_GM479516143.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdf
    • http://mamuhammadiyahnagahure.com/__statics/gudangsoal/files/download-coin-master-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037aa.bin
55b0b138004c0bebaab5de6baef2eefcac8984b9b3bfe6387d027d6ccbefce28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37AA 22784 bytes
font_01_sfnt_off00006aa9.bin
34b20f278f24286c6699cd4d98c19fc9e238f7be3ea9ba45b8deb04e7e0e65ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA9 19044 bytes

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