Analysis
- max time kernel
138s - max time network
139s - platform
windows10_x64 - resource
win10v20201028 - submitted
07/04/2021, 05:30
General
- Target mv Sider Capri.exe
- Size 815KB
- Sample210407-9sy1xsdwsx
- SHA256 f71e2502fed0fa64fd2bc7923c2135dca427d8c3f33b3da764562a6302657b8b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
server126.web-hosting.com
-
Port
587
-
Username
-
Password
F]0fJ[fn)WB@
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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 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\mv Sider Capri.exe"C:\Users\Admin\AppData\Local\Temp\mv Sider Capri.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\mv Sider Capri.exe"{path}"2⤵
- 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/3988-13-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3988-22-0x0000000005CF0000-0x0000000005CF1000-memory.dmp
memory/3988-21-0x0000000005050000-0x0000000005051000-memory.dmp
memory/3988-20-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
memory/3988-15-0x0000000073FA0000-0x000000007468E000-memory.dmp
memory/4696-7-0x0000000004C50000-0x0000000004C51000-memory.dmp
memory/4696-10-0x0000000004E40000-0x0000000004E45000-memory.dmp
memory/4696-11-0x00000000095C0000-0x0000000009671000-memory.dmp
memory/4696-12-0x00000000081D0000-0x000000000823D000-memory.dmp
memory/4696-9-0x0000000008270000-0x0000000008271000-memory.dmp
memory/4696-8-0x0000000004D80000-0x0000000004D81000-memory.dmp
memory/4696-2-0x0000000073FA0000-0x000000007468E000-memory.dmp
memory/4696-6-0x0000000004BB0000-0x0000000004BB1000-memory.dmp
memory/4696-5-0x0000000005190000-0x0000000005191000-memory.dmp
memory/4696-3-0x00000000002B0000-0x00000000002B1000-memory.dmp