Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dd6ad0d0fa6fea3…

MALICIOUS

PDF

46.0 KB Created: 2021-06-10 20:18:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: aa0da1395f18691ebddeb54759121b7e SHA-1: 7ca185e3913e37fa7347cf3548fb669b99730148 SHA-256: 2dd6ad0d0fa6fea3397d3f638944ece76bbb2f576b56b00bef70c77430e43715
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA lure to trick users into clicking a link, which is a common social engineering tactic. The embedded URL points to a resource that likely serves as a download or redirect to a malicious payload. The document's content and heuristics suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-promocodes-robux-free-game-hack
    • http://fkunismuh.org/perpustakaan//repository/blox-rewards_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan//repository/hacks-to-get-free-robux_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/mcpe_GM479516143.pdf
    • http://fkunismuh.org/perpustakaan//repository/hacks-minecraft_GM479516143.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/no-robux_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan//repository/roblox-avatar-free_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/roblox-fire-hack-cheat-engine_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/claim-gg-free-robux_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-free-link-blogspot_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-sign-up-free_GM479516143.pdf
    • http://fkunismuh.org/perpustakaan//repository/free-robux-hack-2021_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan//repository/blox-pink-robux-free_GM431946152.pdf
    • http://fkunismuh.org/perpustakaan/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdf
    • http://fkunismuh.org/perpustakaan//repository/coin-master-claim-free-spins_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-fun-hack_GM406889139.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-use-wurst_GM479516143.pdf
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000506c.bin
b83e2df2fe2a6d735b36f3d57aa2484ac91ef375e7401e1df8de657d4ae9b8d5		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x506C 28760 bytes
font_01_sfnt_off00008fb4.bin
70cdffc60095555c7db9f4479ed570642b06989588b819e16572defb2de0d791		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB4 18872 bytes

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