Malicious PDF — malware analysis report

Static analysis result for SHA-256 00118e4ca9fc2a1b…

MALICIOUS

PDF

43.5 KB Created: 2021-06-03 08:52:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1f2370d72ec8c69a291893541630fb6f SHA-1: 59bbfd8cd955fa267590f1156bd3b06b92f3162f SHA-256: 00118e4ca9fc2a1ba6f09141d2dd47c645145cc8816f4f85fedf27d6d5f24639
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a malicious link. The primary external URI points to a resource related to game hacks, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/free-spins-coinmaster-game-hack
    • http://lib.stimykpn.ac.id//repository/free-roblox-accounts-with-robux_GM431946152.pdf
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdf
    • http://lib.stimykpn.ac.id/repository/how-do-you-get-robux_GM431946152.pdf
    • http://lib.stimykpn.ac.id//repository/coin-master-hack-mobile_GM406889139.pdf
    • http://lib.stimykpn.ac.id//repository/is-minecraft-free_GM479516143.pdf
    • http://lib.stimykpn.ac.id//repository/rbx-free-robux_GM431946152.pdf
    • http://lib.stimykpn.ac.id//repository/minecraft-java-free-trial_GM479516143.pdf
    • http://lib.stimykpn.ac.id//repository/coin-master-gift-link_GM406889139.pdf
    • http://lib.stimykpn.ac.id/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdf
    • http://lib.stimykpn.ac.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdf
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-2021-free_GM406889139.pdf
    • http://lib.stimykpn.ac.id/repository/free-robux-android_GM431946152.pdf
    • http://lib.stimykpn.ac.id//repository/old-roblox-accounts-for-free_GM431946152.pdf
    • http://lib.stimykpn.ac.id//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdf
    • http://lib.stimykpn.ac.id/repository/coin-master-free-rewards-link_GM406889139.pdf
    • http://lib.stimykpn.ac.id/repository/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdf
    • http://lib.stimykpn.ac.id/repository/inappropriate-roblox_GM431946152.pdf
    • http://lib.stimykpn.ac.id/repository/hacks-for-coin-master_GM406889139.pdf
    • http://lib.stimykpn.ac.id//repository/coin-master-time-hack-ios_GM406889139.pdf
    • http://lib.stimykpn.ac.id//repository/can-i-have-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004edf.bin
a734dda5e74f5f2c991edacf310a0224acd311a76c2189c5bf80c2b15294018f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EDF 25424 bytes
font_01_sfnt_off00008804.bin
022383ce4ee195efe1c5dea367cdebf7cbe1f3fcf8800e4ec6c2e24f5959d50c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8804 18148 bytes

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