Analysis

  • max time kernel
    61s
  • max time network
    76s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2024, 02:34

General

  • Target

    Nighty.pyc

  • Size

    2.4MB

  • MD5

    6bf475ec68cda6fe15458601e1e54cac

  • SHA1

    94487d0e8acb99cb70e8a582c6b9a5112ebbfef7

  • SHA256

    b99a622908a8fa8117e2bc8b15e168572befa29bb863c9c25a9e8fdf0e50ec35

  • SHA512

    09a38dc7fab45a2a6171746941722e49e51cbf3dd483c1283ff3e020e9603bb2b5a7c7cc6d1644e2d150d39e7824fef139423dbdf1d5250e11196a362bd4adca

  • SSDEEP

    49152:wPJLuY+oiMXC13NXFhnJtAfXJqTLVfUQW9dehdQzqqkDgUrqzOd2FXP:0uYyhFhnJtAfXJKYoQDa+f1P

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 47 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Nighty.pyc
    1⤵
    • Modifies registry class
    PID:1652
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Nighty.pyc
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:3424

Network

MITRE ATT&CK Enterprise v15

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Downloads