Analysis
- max time kernel
142s - max time network
141s - platform
windows10_x64 - resource
win10v200722 - 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 2 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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 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⤵
-
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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/2080-5-0x00000000051B0000-0x00000000051B1000-memory.dmp
memory/2080-9-0x000000000A0E0000-0x000000000A147000-memory.dmp
memory/2080-4-0x0000000005240000-0x0000000005241000-memory.dmp
memory/2080-0-0x0000000073FB0000-0x000000007469E000-memory.dmp
memory/2080-6-0x0000000005BA0000-0x0000000005BA1000-memory.dmp
memory/2080-7-0x0000000005420000-0x0000000005424000-memory.dmp
memory/2080-3-0x00000000056A0000-0x00000000056A1000-memory.dmp
memory/2080-1-0x00000000008D0000-0x00000000008D1000-memory.dmp
memory/2080-8-0x0000000007A20000-0x0000000007A89000-memory.dmp
memory/2080-10-0x000000000D4F0000-0x000000000D4F1000-memory.dmp
memory/2224-11-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2224-14-0x0000000073FB0000-0x000000007469E000-memory.dmp
memory/2224-19-0x0000000003000000-0x0000000003001000-memory.dmp
memory/2224-20-0x00000000060D0000-0x00000000060D1000-memory.dmp