Analysis
- max time kernel
134s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
25/04/2023, 23:53
General
- Target SOA.exe
- Size 606KB
- Sample230425-3w971sff6x
- SHA256 ffef2423a18b6a9c7cea5e976c71cd5f5dbdacdc70bc0a08237443aad6dacf6c
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.wecaresvc.com
-
Port
587
-
Username
-
Password
u9367gk8qc
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.wecaresvc.com
-
Port
587
-
Username
-
Password
u9367gk8qc
-
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 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SOA.exe"C:\Users\Admin\AppData\Local\Temp\SOA.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\efmQXxcRfo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp908.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
SOA.exe.log
tmp908.tmp
memory/1356-148-0x0000000005670000-0x0000000005680000-memory.dmp
memory/1356-144-0x0000000000400000-0x0000000000430000-memory.dmp
memory/1356-158-0x0000000005670000-0x0000000005680000-memory.dmp
memory/1356-151-0x0000000007580000-0x0000000007742000-memory.dmp
memory/1356-150-0x0000000007340000-0x0000000007390000-memory.dmp
memory/1356-147-0x00000000055D0000-0x0000000005636000-memory.dmp
memory/1832-139-0x0000000004B60000-0x0000000004B70000-memory.dmp
memory/1832-135-0x0000000005210000-0x00000000057B4000-memory.dmp
memory/1832-134-0x0000000004BC0000-0x0000000004C5C000-memory.dmp
memory/1832-140-0x0000000004B60000-0x0000000004B70000-memory.dmp
memory/1832-133-0x0000000000120000-0x00000000001BE000-memory.dmp
memory/1832-136-0x0000000004C60000-0x0000000004CF2000-memory.dmp
memory/1832-138-0x0000000004E80000-0x0000000004ED6000-memory.dmp
memory/1832-137-0x0000000004B80000-0x0000000004B8A000-memory.dmp