Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc3fc138f8e4ac46…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 11:10:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ea59e04d98949fd316762ac18031ddcb SHA-1: 2fda00c4770c0e1b2ff910814027ce3a2dc5416b SHA-256: dc3fc138f8e4ac46fde320cdfeb262b236159e57571a3829bc816fd31ccf274e
82 Risk Score

Malware Insights

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

The document displays a fake CAPTCHA to trick the user into downloading a file from the embedded URL. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL associated with the download lure is https://netcdn.xyz/app/406889139/coin-master-hack-apk-april-12-2021-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-hack-apk-april-12-2021-game-hack
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/minecraft-windows-10-edition-free-download_GM479516143.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/cmaster-club-coin-master-hack_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/minecraft-anarchy-server-no-hacks_GM479516143.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-use-redstone_GM479516143.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/como-hackear-coin-master-2021_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/hack-coin-pro-coin-master_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-coin-master-glitches_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/minecraft-skins-free-girl_GM479516143.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-diamonds-coin-master_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-get-free-robux-not-a-scam_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-robux-generator-no-human-verification_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/coin-free-spin_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/free-coins-coin-master-hack_GM406889139.pdf
    • http://misfi-palangkaraya.com/__statics/gudangsoal/files/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d39.bin
0d845e3b679631899f15e1bd4a2c4fabd753a39650cdd0a4a220d6b266f1057a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D39 25216 bytes
font_01_sfnt_off0000861e.bin
3b30659feb21661d356217d8966cbd258fac2e7fc1ab43a41212753c361910ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 18368 bytes

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