Analysis
- max time kernel
77s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
21/03/2023, 14:06
General
- Target new_bank_vbc.exe
- Size 910KB
- Sample230321-reeh8sch5x
- SHA256 dcb42fb2487eeee3ad0a36b6dd2b6ff674cb4f130db4ebffbfc6e933e18123c0
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
server320.web-hosting.com
-
Port
587
-
Username
-
Password
lagos@123
-
Email to
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\new_bank_vbc.exe"C:\Users\Admin\AppData\Local\Temp\new_bank_vbc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\new_bank_vbc.exe"C:\Users\Admin\AppData\Local\Temp\new_bank_vbc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
new_bank_vbc.exe.log
memory/2064-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/2064-148-0x0000000005100000-0x0000000005110000-memory.dmp
memory/2064-147-0x0000000006F50000-0x0000000007112000-memory.dmp
memory/2064-146-0x0000000006D30000-0x0000000006D80000-memory.dmp
memory/2064-144-0x0000000005100000-0x0000000005110000-memory.dmp
memory/2064-143-0x0000000005080000-0x00000000050E6000-memory.dmp
memory/5028-136-0x0000000005690000-0x00000000056A0000-memory.dmp
memory/5028-139-0x0000000008430000-0x00000000084CC000-memory.dmp
memory/5028-138-0x0000000005690000-0x00000000056A0000-memory.dmp
memory/5028-137-0x0000000005400000-0x000000000540A000-memory.dmp
memory/5028-133-0x0000000000980000-0x0000000000A6A000-memory.dmp
memory/5028-135-0x0000000005410000-0x00000000054A2000-memory.dmp
memory/5028-134-0x0000000005A70000-0x0000000006014000-memory.dmp