Analysis
- max time kernel
144s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/02/2024, 01:22
General
- Target b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.exe
- Size 460KB
- Sample240203-brlv3sgabm
- SHA256 b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot6702604510:AAHhqcLx9PnHKK0GHfjoUU1QRG5B5kHI1FI/
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.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.exe"C:\Users\Admin\AppData\Local\Temp\b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.exe"C:\Users\Admin\AppData\Local\Temp\b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.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
b74624a53a379e0e0e728ea65af5a820de598bc92b141336c3f0eee29d2bac90.exe.log
memory/4192-15-0x0000000004CD0000-0x0000000004D36000-memory.dmp
memory/4192-17-0x00000000064D0000-0x0000000006520000-memory.dmp
memory/4192-20-0x0000000000D60000-0x0000000000D70000-memory.dmp
memory/4192-19-0x00000000750D0000-0x0000000075880000-memory.dmp
memory/4192-18-0x00000000066A0000-0x00000000066AA000-memory.dmp
memory/4192-12-0x00000000003A0000-0x00000000003E2000-memory.dmp
memory/4192-14-0x0000000000D60000-0x0000000000D70000-memory.dmp
memory/4192-13-0x00000000750D0000-0x0000000075880000-memory.dmp
memory/4288-2-0x0000000004F70000-0x0000000004FE0000-memory.dmp
memory/4288-1-0x00000000750D0000-0x0000000075880000-memory.dmp
memory/4288-11-0x00000000750D0000-0x0000000075880000-memory.dmp
memory/4288-0-0x0000000000560000-0x00000000005DA000-memory.dmp
memory/4288-7-0x0000000005070000-0x0000000005078000-memory.dmp
memory/4288-6-0x00000000051F0000-0x000000000528C000-memory.dmp
memory/4288-4-0x0000000005660000-0x0000000005C04000-memory.dmp
memory/4288-5-0x0000000005150000-0x00000000051E2000-memory.dmp
memory/4288-3-0x00000000050A0000-0x00000000050B0000-memory.dmp