Analysis
- max time kernel
146s - max time network
145s - platform
windows7_x64 - resource
win7 - submitted
05/10/2020, 12:00
General
- Target W4kfrC2fM4LZyhi.exe
- Size 597KB
- Sample201005-8vrtmlj8m2
- SHA256 6312da10a200d199338d238923be0a3f9ae4fa4ee20fde05d3875e22fe7a66bc
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.privateemail.com
-
Port
587
-
Username
-
Password
5EkJkj$jrATN7vC
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\W4kfrC2fM4LZyhi.exe"C:\Users\Admin\AppData\Local\Temp\W4kfrC2fM4LZyhi.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\W4kfrC2fM4LZyhi.exe"{path}"2⤵
- 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/1144-0-0x00000000744E0000-0x0000000074BCE000-memory.dmp
memory/1144-1-0x00000000012E0000-0x00000000012E1000-memory.dmp
memory/1144-3-0x00000000004E0000-0x00000000004E4000-memory.dmp
memory/1144-4-0x0000000001220000-0x0000000001289000-memory.dmp
memory/1144-5-0x00000000053E0000-0x0000000005447000-memory.dmp
memory/1876-6-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1876-8-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1876-9-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1876-10-0x00000000744E0000-0x0000000074BCE000-memory.dmp