Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9b4a47d32a017a…

MALICIOUS

PDF

49.6 KB Created: 2021-05-17 11:03:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e83ba14e4e38fbb71b572cc30e9ff907 SHA-1: 327c3f05260b51300ea0a4264c2de282dea683d2 SHA-256: 2e9b4a47d32a017ad2ea5500587112c6b20f6c3af2342c189f7d2da3998105bc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document presents a fake CAPTCHA or human verification prompt, a common lure to trick users into clicking malicious links. The primary external URI points to a URL associated with game hacks, suggesting a phishing or social engineering attempt. No scripts were extracted, but the presence of multiple PDF URIs and the fake CAPTCHA heuristic strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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 https://netcdn.xyz/app/431946152/robux-game-hack
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/roblox-rewards-site_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/minecraft-tower-defense-hacked_GM479516143.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-minecraft-skins_GM479516143.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/robux-download_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/hack-coin-master-mod-apk_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/roblox-e-free_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-roblox-groups-with-funds_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/coin-master-pc-hack_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/coin-master-free-spins-only_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/robux-come_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/best-way-to-get-robux_GM431946152.pdf
    • https://uimedan.ac.id/assets/ckfinder/userfiles/files/free-robux-no-verify_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004867.bin
44d274df96d8ce4267f83201c0c7aef1561ce8ebe5fdefac6bb809c5c4d119f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4867 28436 bytes
font_01_sfnt_off00008984.bin
cecdec4eec3e1f7b53b5971a5ec5f87537a44d14ec667cc3b36bbf2bdfe52d44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8984 2880 bytes
font_02_sfnt_off0000936e.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936E 5696 bytes
font_03_sfnt_off0000a07f.bin
ccf20ca1ad80d0cd2f0d464461636129858ae353cf2c3769b35ef20048afdef0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA07F 17852 bytes

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