Analysis
- max time kernel
114s - max time network
117s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
03/05/2024, 04:27
General
- Target SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe
- Size 692KB
- Sample240503-e234wshb69
- SHA256 21e7743ee49b00d201af99fbd9fc0a430032f416070834294b12f3ea2c12b48d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.starmech.net
-
Port
587
-
Username
-
Password
nics123
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.starmech.net
-
Port
587
-
Username
-
Password
nics123
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 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.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KbNISewEyYleQ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KbNISewEyYleQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A84.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
SecuriteInfo.com.Win32.PWSX-gen.23212.6828.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_irwvqevi.tpn.ps1
tmp5A84.tmp
memory/3480-16-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3480-76-0x0000000007760000-0x00000000077F6000-memory.dmp
memory/3480-87-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3480-81-0x0000000007800000-0x0000000007808000-memory.dmp
memory/3480-80-0x0000000007820000-0x000000000783A000-memory.dmp
memory/3480-14-0x0000000004C50000-0x0000000004C86000-memory.dmp
memory/3480-79-0x0000000007720000-0x0000000007734000-memory.dmp
memory/3480-15-0x00000000052C0000-0x00000000058E8000-memory.dmp
memory/3480-17-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3480-19-0x00000000050E0000-0x0000000005102000-memory.dmp
memory/3480-78-0x0000000007710000-0x000000000771E000-memory.dmp
memory/3480-21-0x00000000051F0000-0x0000000005256000-memory.dmp
memory/3480-20-0x0000000005180000-0x00000000051E6000-memory.dmp
memory/3480-23-0x0000000005B70000-0x0000000005EC4000-memory.dmp
memory/3480-77-0x00000000076E0000-0x00000000076F1000-memory.dmp
memory/3480-74-0x00000000074E0000-0x00000000074FA000-memory.dmp
memory/3480-50-0x0000000007190000-0x00000000071C2000-memory.dmp
memory/3480-51-0x0000000070B20000-0x0000000070B6C000-memory.dmp
memory/3480-61-0x0000000006750000-0x000000000676E000-memory.dmp
memory/3480-18-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3480-62-0x00000000073D0000-0x0000000007473000-memory.dmp
memory/3672-6-0x0000000005630000-0x00000000056CC000-memory.dmp
memory/3672-0-0x000000007445E000-0x000000007445F000-memory.dmp
memory/3672-47-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3672-1-0x0000000000930000-0x00000000009E0000-memory.dmp
memory/3672-3-0x0000000005370000-0x0000000005402000-memory.dmp
memory/3672-4-0x0000000005530000-0x000000000553A000-memory.dmp
memory/3672-5-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/3672-7-0x0000000005830000-0x0000000005846000-memory.dmp
memory/3672-2-0x0000000005880000-0x0000000005E24000-memory.dmp
memory/3672-8-0x0000000005860000-0x0000000005876000-memory.dmp
memory/3672-9-0x0000000006A30000-0x0000000006AB4000-memory.dmp
memory/4264-31-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4264-90-0x00000000068A0000-0x00000000068F0000-memory.dmp
memory/4484-48-0x00000000064C0000-0x00000000064DE000-memory.dmp
memory/4484-24-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4484-49-0x0000000006540000-0x000000000658C000-memory.dmp
memory/4484-75-0x0000000007840000-0x000000000784A000-memory.dmp
memory/4484-73-0x0000000007E10000-0x000000000848A000-memory.dmp
memory/4484-88-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4484-25-0x0000000074450000-0x0000000074C00000-memory.dmp
memory/4484-63-0x0000000070B20000-0x0000000070B6C000-memory.dmp