Analysis
- max time kernel
139s - max time network
53s - platform
windows10_x64 - resource
win10v200722 - submitted
27/08/2020, 08:03
General
- Target PO-20456200 Ningbo Xingrui Electronic.exe
- Size 996KB
- Sample200827-zyafgnqns2
- SHA256 6bdce9236cb2c45000de6d3b5c8253d4f247c68d802f990e2f244d03d93d9df3
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.nsmelectronics.com
-
Port
587
-
Username
-
Password
chimaobi@
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO-20456200 Ningbo Xingrui Electronic.exe"C:\Users\Admin\AppData\Local\Temp\PO-20456200 Ningbo Xingrui Electronic.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- 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/2640-11-0x00000000739D0000-0x00000000740BE000-memory.dmp
memory/2640-12-0x0000000000350000-0x00000000003B6000-memory.dmp
memory/2640-15-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
memory/2640-16-0x0000000004E50000-0x0000000004E51000-memory.dmp
memory/2640-17-0x00000000052F0000-0x00000000052F1000-memory.dmp
memory/2640-19-0x0000000005D10000-0x0000000005D11000-memory.dmp
memory/3984-4-0x0000000005910000-0x0000000005911000-memory.dmp
memory/3984-5-0x00000000054F0000-0x00000000054F1000-memory.dmp
memory/3984-6-0x0000000005150000-0x0000000005153000-memory.dmp
memory/3984-3-0x00000000026B0000-0x00000000026BB000-memory.dmp
memory/3984-1-0x00000000002D0000-0x00000000002D1000-memory.dmp
memory/3984-0-0x00000000739D0000-0x00000000740BE000-memory.dmp