Malicious PDF — malware analysis report

Static analysis result for SHA-256 9438811040f00094…

MALICIOUS

PDF

42.8 KB Created: 2021-06-13 19:40:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4be1a83e266bb673a0e2184e35273b4a SHA-1: 5552a1629df0a25d6de4cdee1f2e6bd967f1e31a SHA-256: 9438811040f00094ec765c578dfa44fec3aa5cb5859831901cead043d744f651
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or verification prompt to trick users into clicking a malicious link. The embedded URL, http://netcdn.co/app/431946152/shinobi-life-roblox-hack-onyx-game-hack, is likely a lure for downloading a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.co/app/431946152/shinobi-life-roblox-hack-onyx-game-hack
    • http://perpus.polbitrada.ac.id/repository/free-spins-for-coin-master-app_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/online-coin-master-hack-here_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/get-free-coins-on-coin-master_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/master-coin-free_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/roblox-hack-generator_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/roblox-free-everything_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/how-to-get-free-robux-and-tix-on-ipad_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/make-your-own-roblox-character-for-free_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdf
    • http://perpus.polbitrada.ac.id/repository/jailbreak-hack-roblox-money_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/how-to-get-followers-on-tiktok-for-free_GM835599320.pdf
    • http://perpus.polbitrada.ac.id/repository/free-robux-inspect-pastebin_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/robux-free-c_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/robuxian-com-free-robux-generator_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/roblox-herunterladen-free_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/free-robux-come_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/thebuxian-new-roblox-animation-gives-free-robux_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/pinapple-outfit-hack-roblox-royale-high_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000494e.bin
1f5a9cffe4c8e01eaeeddbf8df506ad36340726ff1cc74fc6b6236ddc02059d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x494E 25796 bytes
font_01_sfnt_off000083d2.bin
f2f23aec97f8a629dae105ec21d0b2e332d62fee3891ddc541594899b44c3f7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83D2 18648 bytes

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