Analysis
- max time kernel
133s - max time network
138s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/04/2023, 05:18
General
- Target SOA.exe
- Size 599KB
- Sample230428-fy99gaea2w
- SHA256 cf30b3791cfb71dbfaaa21d0fc7f030810ad8181d4fcee623667b09602471400
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.wecaresvc.com
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Port
587
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Username
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Password
u9367gk8qc
Extracted
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agenttesla
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Protocol
smtp
-
Host
mail.wecaresvc.com
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Port
587
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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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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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
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XVFxbh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF30F.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\SOA.exe"{path}"2⤵
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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
tmpF30F.tmp
memory/1820-137-0x00000000055D0000-0x00000000055DA000-memory.dmp
memory/1820-134-0x00000000053A0000-0x000000000543C000-memory.dmp
memory/1820-133-0x0000000000930000-0x00000000009CC000-memory.dmp
memory/1820-138-0x0000000005640000-0x0000000005696000-memory.dmp
memory/1820-139-0x0000000005300000-0x0000000005310000-memory.dmp
memory/1820-140-0x0000000005300000-0x0000000005310000-memory.dmp
memory/1820-135-0x00000000059F0000-0x0000000005F94000-memory.dmp
memory/1820-136-0x0000000005440000-0x00000000054D2000-memory.dmp
memory/1932-144-0x0000000000400000-0x0000000000430000-memory.dmp
memory/1932-147-0x0000000005000000-0x0000000005066000-memory.dmp
memory/1932-148-0x0000000002B70000-0x0000000002B80000-memory.dmp
memory/1932-150-0x0000000006D00000-0x0000000006D50000-memory.dmp
memory/1932-151-0x0000000006F90000-0x0000000007152000-memory.dmp
memory/1932-158-0x0000000002B70000-0x0000000002B80000-memory.dmp