Analysis
- max time kernel
91s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
17/11/2022, 15:13
General
- Target TNT Express Receipt_879937661478.exe
- Size 700KB
- Sample221117-slq2aaag2z
- SHA256 6da640e84edded3f97239600738cd700e9c596887beeb66aafa2d89a50462620
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5744211523:AAHNYX03JvGJaCmeHR-kYp0NO5dKTzd5PeI/
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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TNT Express Receipt_879937661478.exe"C:\Users\Admin\AppData\Local\Temp\TNT Express Receipt_879937661478.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\TNT Express Receipt_879937661478.exe"C:\Users\Admin\AppData\Local\Temp\TNT Express Receipt_879937661478.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- 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
memory/4260-132-0x0000000000FA0000-0x0000000001056000-memory.dmp
memory/4260-133-0x00000000060D0000-0x0000000006674000-memory.dmp
memory/4260-134-0x0000000005A50000-0x0000000005AE2000-memory.dmp
memory/4260-135-0x0000000005A20000-0x0000000005A2A000-memory.dmp
memory/4260-136-0x0000000005DC0000-0x0000000005F66000-memory.dmp
memory/4260-137-0x0000000009C10000-0x0000000009CAC000-memory.dmp
memory/4632-139-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4632-140-0x0000000006320000-0x0000000006386000-memory.dmp
memory/4632-141-0x0000000007090000-0x00000000070E0000-memory.dmp