Analysis
- max time kernel
116s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/03/2024, 04:47
General
- Target 5c64cab3d3ff04e498f71ab2694d76df.exe
- Size 718KB
- Sample240322-fejbmsba5y
- SHA256 1cd783e8b8452da8b87fef52742d4ecf53cb1938e375b62ab03214ad145405db
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
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Port
587
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Username
-
Password
.Password: mt!VMNE0
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
.Password: mt!VMNE0
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5c64cab3d3ff04e498f71ab2694d76df.exe"C:\Users\Admin\AppData\Local\Temp\5c64cab3d3ff04e498f71ab2694d76df.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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\5c64cab3d3ff04e498f71ab2694d76df.exe"2⤵
- 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\WZCyArRsXuQK.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WZCyArRsXuQK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7DEA.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\5c64cab3d3ff04e498f71ab2694d76df.exe"C:\Users\Admin\AppData\Local\Temp\5c64cab3d3ff04e498f71ab2694d76df.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_4la4rp0f.ugl.ps1
tmp7DEA.tmp
memory/368-99-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/368-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/368-44-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/368-98-0x0000000006D00000-0x0000000006D50000-memory.dmp
memory/4600-5-0x0000000005550000-0x000000000555A000-memory.dmp
memory/4600-4-0x0000000005530000-0x0000000005540000-memory.dmp
memory/4600-10-0x0000000006FF0000-0x0000000007074000-memory.dmp
memory/4600-8-0x0000000005B30000-0x0000000005B38000-memory.dmp
memory/4600-7-0x00000000059E0000-0x00000000059F6000-memory.dmp
memory/4600-6-0x0000000005800000-0x000000000589C000-memory.dmp
memory/4600-1-0x0000000000BD0000-0x0000000000C8A000-memory.dmp
memory/4600-9-0x0000000005B60000-0x0000000005B6C000-memory.dmp
memory/4600-3-0x00000000055C0000-0x0000000005652000-memory.dmp
memory/4600-51-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4600-50-0x0000000005530000-0x0000000005540000-memory.dmp
memory/4600-2-0x0000000005B70000-0x0000000006114000-memory.dmp
memory/4600-42-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4600-0-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4824-19-0x0000000004490000-0x00000000044A0000-memory.dmp
memory/4824-87-0x0000000006FF0000-0x0000000007004000-memory.dmp
memory/4824-26-0x0000000005300000-0x0000000005366000-memory.dmp
memory/4824-24-0x00000000051E0000-0x0000000005202000-memory.dmp
memory/4824-16-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4824-43-0x00000000054A0000-0x00000000057F4000-memory.dmp
memory/4824-15-0x00000000044E0000-0x0000000004516000-memory.dmp
memory/4824-18-0x0000000004B50000-0x0000000005178000-memory.dmp
memory/4824-96-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4824-17-0x0000000004490000-0x00000000044A0000-memory.dmp
memory/4824-54-0x0000000006A10000-0x0000000006A42000-memory.dmp
memory/4824-55-0x00000000755D0000-0x000000007561C000-memory.dmp
memory/4824-89-0x00000000070D0000-0x00000000070D8000-memory.dmp
memory/4824-76-0x0000000004490000-0x00000000044A0000-memory.dmp
memory/4824-75-0x0000000006C50000-0x0000000006C6E000-memory.dmp
memory/4824-88-0x00000000070F0000-0x000000000710A000-memory.dmp
memory/4824-80-0x0000000006C80000-0x0000000006D23000-memory.dmp
memory/4824-79-0x0000000004490000-0x00000000044A0000-memory.dmp
memory/4824-85-0x0000000006FB0000-0x0000000006FC1000-memory.dmp
memory/4824-84-0x0000000007030000-0x00000000070C6000-memory.dmp
memory/4824-81-0x0000000007400000-0x0000000007A7A000-memory.dmp
memory/4824-83-0x0000000006E30000-0x0000000006E3A000-memory.dmp
memory/4832-82-0x0000000007150000-0x000000000716A000-memory.dmp
memory/4832-78-0x0000000004B40000-0x0000000004B50000-memory.dmp
memory/4832-86-0x0000000007380000-0x000000000738E000-memory.dmp
memory/4832-37-0x0000000004E50000-0x0000000004EB6000-memory.dmp
memory/4832-56-0x000000007F680000-0x000000007F690000-memory.dmp
memory/4832-57-0x00000000755D0000-0x000000007561C000-memory.dmp
memory/4832-53-0x0000000006020000-0x000000000606C000-memory.dmp
memory/4832-52-0x0000000005E20000-0x0000000005E3E000-memory.dmp
memory/4832-97-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4832-21-0x0000000074D30000-0x00000000754E0000-memory.dmp
memory/4832-22-0x0000000004B40000-0x0000000004B50000-memory.dmp
memory/4832-23-0x0000000004B40000-0x0000000004B50000-memory.dmp