Analysis
- max time kernel
124s - max time network
148s - platform
windows10_x64 - resource
win10-en - submitted
03/09/2021, 07:40
General
- Target c2d055e3c31f4d59a1e9bc8db7c4bc40.exe
- Size 859KB
- Sample210903-jhk67acga3
- SHA256 9525197c77e5de1094ea33c3cd76a3e87c91342b4d41148442808bc27b4e2ca6
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
ZPK)xvO3
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c2d055e3c31f4d59a1e9bc8db7c4bc40.exe"C:\Users\Admin\AppData\Local\Temp\c2d055e3c31f4d59a1e9bc8db7c4bc40.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\c2d055e3c31f4d59a1e9bc8db7c4bc40.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/4008-126-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4008-135-0x0000000005C30000-0x0000000005C31000-memory.dmp
memory/4008-134-0x00000000050C0000-0x00000000050C1000-memory.dmp
memory/4008-133-0x0000000005040000-0x000000000553E000-memory.dmp
memory/4656-120-0x00000000057B0000-0x00000000057B1000-memory.dmp
memory/4656-123-0x00000000014E0000-0x00000000014EE000-memory.dmp
memory/4656-124-0x0000000007A80000-0x0000000007B12000-memory.dmp
memory/4656-125-0x0000000007B70000-0x0000000007BBF000-memory.dmp
memory/4656-122-0x0000000007D10000-0x000000000820E000-memory.dmp
memory/4656-121-0x0000000007E10000-0x0000000007E11000-memory.dmp
memory/4656-115-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
memory/4656-119-0x0000000007D10000-0x0000000007D11000-memory.dmp
memory/4656-118-0x0000000008210000-0x0000000008211000-memory.dmp
memory/4656-117-0x0000000007C70000-0x0000000007C71000-memory.dmp