Analysis
- max time kernel
105s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/02/2021, 20:11
General
- Target GOlden Leader - CTM.exe
- Size 1.5MB
- Sample210209-ml8lyfk58s
- SHA256 edfb07ec10ae322bbba31f0239c009ccd95f7a1f1f07e6bf7fb1499dda801b76
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.hyshippingcn.com
-
Port
587
-
Username
-
Password
e*u@qkS4
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- Executes dropped EXE 1 IoCs
- 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.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\GOlden Leader - CTM.exe"C:\Users\Admin\AppData\Local\Temp\GOlden Leader - CTM.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3636-8-0x0000000005DD0000-0x0000000005DD1000-memory.dmp
memory/3636-15-0x000000000CB60000-0x000000000CB61000-memory.dmp
memory/3636-7-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3636-2-0x0000000073BA0000-0x000000007428E000-memory.dmp
memory/3636-9-0x0000000005310000-0x0000000005311000-memory.dmp
memory/3636-11-0x0000000006A30000-0x0000000006A4E000-memory.dmp
memory/3636-12-0x0000000006BE0000-0x0000000006BE1000-memory.dmp
memory/3636-13-0x0000000005311000-0x0000000005312000-memory.dmp
memory/3636-14-0x0000000009B30000-0x0000000009B3B000-memory.dmp
memory/3636-6-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/3636-3-0x0000000000860000-0x0000000000861000-memory.dmp
memory/3636-5-0x00000000058D0000-0x00000000058D1000-memory.dmp
memory/3944-16-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3944-20-0x0000000073BA0000-0x000000007428E000-memory.dmp
memory/3944-25-0x0000000004D70000-0x0000000004D71000-memory.dmp
memory/3944-26-0x0000000004D40000-0x0000000004D41000-memory.dmp
memory/3944-27-0x0000000005A50000-0x0000000005A51000-memory.dmp
memory/3944-29-0x0000000000C60000-0x0000000000C61000-memory.dmp
memory/3944-30-0x0000000004D71000-0x0000000004D72000-memory.dmp