Analysis
- max time kernel
120s - max time network
147s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
28/05/2024, 17:44
General
- Target skm_sepa_89277.exe
- Size 687KB
- Sample240528-wa6jdadg21
- SHA256 00abf40ad25f2fe3e482e64cf336649cd4e9072092ae2bfad4201637bdf4ba7a
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.strato.de
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Port
587
-
Username
-
Password
6M9L22
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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.
- Looks up external IP address via web service 3 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\skm_sepa_89277.exe"C:\Users\Admin\AppData\Local\Temp\skm_sepa_89277.exe"1⤵
- Suspicious use of SetThreadContext
- 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\skm_sepa_89277.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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\Roaming\jgygUKtU.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jgygUKtU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE50.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpBE50.tmp
d93f411851d7c929.customDestinations-ms
memory/2524-5-0x0000000000630000-0x0000000000640000-memory.dmp
memory/2524-33-0x00000000745D0000-0x0000000074CBE000-memory.dmp
memory/2524-4-0x0000000000610000-0x000000000061C000-memory.dmp
memory/2524-0-0x00000000745DE000-0x00000000745DF000-memory.dmp
memory/2524-6-0x0000000004D40000-0x0000000004DC4000-memory.dmp
memory/2524-7-0x00000000745DE000-0x00000000745DF000-memory.dmp
memory/2524-8-0x00000000745D0000-0x0000000074CBE000-memory.dmp
memory/2524-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp
memory/2524-1-0x0000000000310000-0x00000000003BE000-memory.dmp
memory/2524-3-0x00000000004A0000-0x00000000004B6000-memory.dmp
memory/2900-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-30-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2900-27-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-31-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2900-32-0x0000000000400000-0x0000000000442000-memory.dmp