Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
13/05/2024, 04:39
General
- Target Eleven.exe
- Size 31KB
- Sample240513-e934vshh5w
- SHA256 808f45e1d033ec8b120e75339ba896ffa52691b3d9cd4a2d4c0fadb0ede9ffb2
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 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\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
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Downloads
__PSScriptPolicyTest_dosadoi1.xbt.ps1
memory/236-1-0x0000000000C00000-0x0000000000C0E000-memory.dmp
memory/236-2-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/236-51-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/236-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp
memory/4740-33-0x00000000069D0000-0x00000000069EE000-memory.dmp
memory/4740-34-0x0000000007600000-0x00000000076A4000-memory.dmp
memory/4740-8-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-9-0x0000000005640000-0x0000000005662000-memory.dmp
memory/4740-11-0x0000000005EA0000-0x0000000005F06000-memory.dmp
memory/4740-10-0x0000000005E30000-0x0000000005E96000-memory.dmp
memory/4740-17-0x0000000005F10000-0x0000000006267000-memory.dmp
memory/4740-7-0x0000000005800000-0x0000000005E2A000-memory.dmp
memory/4740-21-0x0000000006400000-0x000000000641E000-memory.dmp
memory/4740-22-0x0000000006490000-0x00000000064DC000-memory.dmp
memory/4740-24-0x0000000070800000-0x000000007084C000-memory.dmp
memory/4740-5-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-23-0x00000000069F0000-0x0000000006A24000-memory.dmp
memory/4740-6-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-36-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-35-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-37-0x0000000007D90000-0x000000000840A000-memory.dmp
memory/4740-38-0x0000000007750000-0x000000000776A000-memory.dmp
memory/4740-39-0x00000000077D0000-0x00000000077DA000-memory.dmp
memory/4740-40-0x00000000079E0000-0x0000000007A76000-memory.dmp
memory/4740-41-0x0000000007960000-0x0000000007971000-memory.dmp
memory/4740-42-0x0000000007990000-0x000000000799E000-memory.dmp
memory/4740-43-0x00000000079A0000-0x00000000079B5000-memory.dmp
memory/4740-44-0x0000000007AA0000-0x0000000007ABA000-memory.dmp
memory/4740-45-0x0000000007A90000-0x0000000007A98000-memory.dmp
memory/4740-48-0x0000000074CD0000-0x0000000075481000-memory.dmp
memory/4740-4-0x0000000002C00000-0x0000000002C36000-memory.dmp