Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/03/2023, 14:48
General
- Target SOA-FEB_2023.exe
- Size 752KB
- Sample230321-r6e9vabe89
- SHA256 b75b70e73450fe7e7cd8537d8e53c9d7e978eb7b8f34b8e899f85591a2f83c75
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.bestcargologistics.com
-
Port
587
-
Username
-
Password
7Lalpir86
-
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). Likely ransomware behaviour.
- 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 SetWindowsHookEx 1 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-FEB_2023.exe"C:\Users\Admin\AppData\Local\Temp\SOA-FEB_2023.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\YbzfPanjY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE5C.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SOA-FEB_2023.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
SOA-FEB_2023.exe.log
tmpEE5C.tmp
memory/1716-138-0x0000000004D90000-0x0000000004DA0000-memory.dmp
memory/1716-133-0x0000000000010000-0x00000000000D2000-memory.dmp
memory/1716-135-0x0000000004B50000-0x0000000004BE2000-memory.dmp
memory/1716-134-0x0000000004AB0000-0x0000000004B4C000-memory.dmp
memory/4940-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/4940-143-0x0000000005630000-0x0000000005BD4000-memory.dmp
memory/4940-144-0x0000000004F70000-0x0000000004FD6000-memory.dmp
memory/4940-145-0x0000000004EF0000-0x0000000004F00000-memory.dmp
memory/4940-146-0x0000000004EF0000-0x0000000004F00000-memory.dmp
memory/4940-148-0x0000000006A90000-0x0000000006A9A000-memory.dmp
memory/4940-149-0x0000000006B80000-0x0000000006BD0000-memory.dmp
memory/4940-150-0x0000000006EA0000-0x0000000007062000-memory.dmp