Analysis
- max time kernel
57s - max time network
142s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:17
General
- Target Invoice.exe
- Size 748KB
- Sample201109-aexp9b2vm6
- SHA256 8a85bd25443551cb0e6c6efc7e8919cc8a7df0191e6766a2c76c71e9c82fb9af
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.bwe-group.com
-
Port
587
-
Username
-
Password
lili2008
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.bwe-group.com
-
Port
587
-
Username
-
Password
lili2008
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1612-0-0x0000000000400000-0x00000000004B1000-memory.dmp
memory/1612-2-0x0000000000400000-0x00000000004B1000-memory.dmp
memory/1612-3-0x0000000000400000-0x00000000004B1000-memory.dmp
memory/1612-4-0x00000000021B0000-0x0000000002202000-memory.dmp
memory/1612-5-0x00000000021A2000-0x00000000021A3000-memory.dmp