Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c84ab362763d34…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 14:12:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c6890edbcfeb2d8e885ec4a2d53fdd86 SHA-1: 8df2d381e4cb28e366b4108da8e546fba73bfb75 SHA-256: 37c84ab362763d345d5c10c58292cdf8261a4aac09d25bc58aa2bafb3044328a
82 Risk Score

Malware Insights

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

The document displays a fake CAPTCHA and includes a call-to-action button, aiming to trick users into downloading potentially malicious content related to game hacks. The presence of numerous URLs pointing to game-related exploits and the ML classifier's high confidence score indicate a malicious intent. No scripts were extracted from this sample.

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.co/app/431946152/roblox-account-hacken-game-hack
    • http://library.stikessuakainsan.ac.id/repository/free-cool-roblox-templates_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/is-there-any-way-to-get-free-robux_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-robux-microsoft_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-coin-master-spins-link_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-spins-coin-master-twitter_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/play-minecraft-for-free_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-spins-hack-iphone_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-codes_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/minecraft-hacker-mask_GM479516143.pdf
    • http://library.stikessuakainsan.ac.id/repository/sites-for-free-robux_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-game-hacking_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id//repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-hack-into-an-account-on-roblox_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/robux-generator_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/coin-master-hack-version-33-2_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-do-i-get-robux_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/free-robux-without-paying_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-roblox-card-codes-hack_GM431946152.pdf
    • http://library.stikessuakainsan.ac.id//repository/free-role-in-coin-master_GM406889139.pdf
    • http://library.stikessuakainsan.ac.id/repository/robux-stealer-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f8a.bin
e48928d1ace980bfccb39aeaeec520cf4bfc2b6f021010a81fc190eee09faf49
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8A 22056 bytes
font_01_sfnt_off00006086.bin
89d09e44688037c2b10b7b1bd27885393cd09c5b44eb42ae05d160fb92155a1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6086 18900 bytes