Analysis

  • max time kernel
    90s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/05/2024, 21:27

General

  • Target
    $PLUGINSDIR/WinShell.dll
  • Size 3KB
  • Sample240510-1arsfaae8v
  • SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
  • MD5 SHA1 SHA512
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinShell.dll,#1
      2⤵
        PID:648
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 648 -s 460
          3⤵
          • Program crash
          PID:4308
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 648 -ip 648
      1⤵
        PID:4300

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads