Analysis
- max time kernel
102s - max time network
103s - platform
windows7_x64 - resource
win7v20201028 - submitted
24/11/2020, 16:58
General
- Target dchamp.exe
- Size 632KB
- Sample201124-x2sem1ae9s
- SHA256 e01ebcaeb9a4d013354443b10df0a2280861bb290e7c88bc32055dbfbfaa2065
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.lettu.us
-
Port
587
-
Username
-
Password
anyanwu5050
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
- 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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dchamp.exe"C:\Users\Admin\AppData\Local\Temp\dchamp.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\dchamp.exe"C:\Users\Admin\AppData\Local\Temp\dchamp.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1688-5-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1688-7-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1688-8-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1688-9-0x00000000742C0000-0x00000000749AE000-memory.dmp
memory/1848-0-0x00000000742C0000-0x00000000749AE000-memory.dmp
memory/1848-1-0x0000000000C60000-0x0000000000C61000-memory.dmp
memory/1848-3-0x0000000000510000-0x000000000055C000-memory.dmp
memory/1848-4-0x00000000009A0000-0x00000000009B6000-memory.dmp