Analysis
- max time kernel
57s - max time network
177s - platform
windows7_x64 - resource
win7-20230220-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.
- 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 13 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⤵
- 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\YbzfPanjY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE35E.tmp"2⤵
- Creates scheduled task(s)
-
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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
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Downloads
tmpE35E.tmp
memory/272-69-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-64-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-91-0x0000000004EC0000-0x0000000004F00000-memory.dmp
memory/272-72-0x0000000004EC0000-0x0000000004F00000-memory.dmp
memory/272-71-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-62-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-65-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-67-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-63-0x0000000000400000-0x0000000000430000-memory.dmp
memory/272-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1956-56-0x0000000005180000-0x00000000051FC000-memory.dmp
memory/1956-54-0x0000000001230000-0x00000000012F2000-memory.dmp
memory/1956-55-0x00000000001B0000-0x00000000001BC000-memory.dmp
memory/1956-60-0x0000000004DF0000-0x0000000004E30000-memory.dmp
memory/1956-57-0x0000000000290000-0x00000000002C0000-memory.dmp