Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
13/05/2024, 04:35
General
- Target Eleven.exe
- Size 31KB
- Sample240513-e724sach62
- SHA256 a9ae78336939dd59b2b757ae06eaa67961845d9032e0aa75637a80da1c164d41
Malware Config
Signatures
- Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
- UAC bypass 3 TTPs 2 IoCs
- Blocks application from running via registry modification 1 IoCs
Adds application to list of disallowed applications.
- Disables RegEdit via registry modification 1 IoCs
- Disables Task Manager via registry modification
- Disables cmd.exe use via registry modification 1 IoCs
- Windows security modification 2 TTPs 2 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Drops file in System32 directory 2 IoCs
- Sets desktop wallpaper using registry 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies data under HKEY_USERS 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- System policy modification 1 TTPs 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Eleven.exe"C:\Users\Admin\AppData\Local\Temp\Eleven.exe"1⤵
- Modifies Windows Defender Real-time Protection settings
- UAC bypass
- Blocks application from running via registry modification
- Disables RegEdit via registry modification
- Disables cmd.exe use via registry modification
- Windows security modification
- Checks whether UAC is enabled
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "Windows Update" /tr "C:\Windows\System32\cmd.exe /c start /b Eleven.exe" /sc MINUTE /mo 1 /ru SYSTEM /f /rl HIGHEST2⤵
- Creates scheduled task(s)
-
-
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca1⤵
- Suspicious use of SetWindowsHookEx
-
C:\Windows\System32\cmd.exeC:\Windows\System32\cmd.exe /c start /b Eleven.exe1⤵
- Modifies data under HKEY_USERS
Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_ux2hqfpq.1bb.ps1
memory/2956-24-0x0000000070B00000-0x0000000070B4C000-memory.dmp
memory/2956-39-0x0000000007630000-0x000000000763A000-memory.dmp
memory/2956-4-0x0000000002A90000-0x0000000002AC6000-memory.dmp
memory/2956-5-0x00000000054F0000-0x0000000005B1A000-memory.dmp
memory/2956-7-0x00000000053E0000-0x0000000005402000-memory.dmp
memory/2956-6-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-9-0x0000000005BA0000-0x0000000005C06000-memory.dmp
memory/2956-8-0x0000000005480000-0x00000000054E6000-memory.dmp
memory/2956-48-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-18-0x0000000005D50000-0x00000000060A7000-memory.dmp
memory/2956-19-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-20-0x0000000006260000-0x000000000627E000-memory.dmp
memory/2956-22-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-21-0x0000000006690000-0x00000000066DC000-memory.dmp
memory/2956-45-0x00000000078F0000-0x00000000078F8000-memory.dmp
memory/2956-33-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-35-0x0000000007480000-0x0000000007524000-memory.dmp
memory/2956-34-0x0000000006820000-0x000000000683E000-memory.dmp
memory/2956-44-0x0000000007900000-0x000000000791A000-memory.dmp
memory/2956-36-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/2956-38-0x00000000075B0000-0x00000000075CA000-memory.dmp
memory/2956-37-0x0000000007BF0000-0x000000000826A000-memory.dmp
memory/2956-23-0x0000000007240000-0x0000000007274000-memory.dmp
memory/2956-40-0x0000000007840000-0x00000000078D6000-memory.dmp
memory/2956-41-0x00000000077C0000-0x00000000077D1000-memory.dmp
memory/2956-42-0x00000000077F0000-0x00000000077FE000-memory.dmp
memory/2956-43-0x0000000007800000-0x0000000007815000-memory.dmp
memory/4088-0-0x0000000074FDE000-0x0000000074FDF000-memory.dmp
memory/4088-2-0x0000000074FD0000-0x0000000075781000-memory.dmp
memory/4088-1-0x0000000000010000-0x000000000001E000-memory.dmp
memory/4088-51-0x0000000074FD0000-0x0000000075781000-memory.dmp