Analysis
- max time kernel
133s - max time network
104s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
28/05/2024, 22:17
General
- Target 682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe
- Size 882KB
- Sample240528-17b39aef8s
- SHA256 682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
-
Port
587
-
Username
-
Password
MHinfo01
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.medicalhome.com.pe
-
Port
587
-
Username
-
Password
MHinfo01
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
- Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
- Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"C:\Users\Admin\AppData\Local\Temp\682ee46ae4bbfeab3f43ed29b2957d70c9b8248ec10a2ebe2481c645d1757cf7.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2632-11-0x0000000000400000-0x0000000000476000-memory.dmp
memory/2632-21-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/2632-20-0x0000000006270000-0x00000000062C0000-memory.dmp
memory/2632-17-0x0000000004E20000-0x0000000004E86000-memory.dmp
memory/2632-16-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/2632-14-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/5012-8-0x0000000006540000-0x0000000006550000-memory.dmp
memory/5012-7-0x0000000006530000-0x000000000653C000-memory.dmp
memory/5012-0-0x0000000074C8E000-0x0000000074C8F000-memory.dmp
memory/5012-9-0x00000000065A0000-0x0000000006658000-memory.dmp
memory/5012-10-0x0000000006870000-0x000000000690C000-memory.dmp
memory/5012-6-0x0000000006510000-0x0000000006526000-memory.dmp
memory/5012-13-0x0000000074C8E000-0x0000000074C8F000-memory.dmp
memory/5012-5-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/5012-15-0x0000000074C80000-0x0000000075430000-memory.dmp
memory/5012-4-0x0000000004AF0000-0x0000000004AFA000-memory.dmp
memory/5012-3-0x0000000004B40000-0x0000000004BD2000-memory.dmp
memory/5012-2-0x00000000050F0000-0x0000000005694000-memory.dmp
memory/5012-1-0x0000000000020000-0x0000000000100000-memory.dmp